Achmad Tjachja Nugraha
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Achmad Tjachja Nugraha has a total of 28 co-authors. Here are the top co-authors by number of shared publications:
- Gunawan Prayitno
Universitas Brawijaya
5 shared publications - Enock Siankwilimba
Graduate School of Business, University of Zambia
3 shared publications - Dian Dinanti
Universitas Brawijaya, Indonesia
2 shared publications - Achmad Efendi
Department of Statistics, Faculty of Mathematics and Natural Sciences, Universitas Brawijaya, Malang 65145, Indonesia
1 shared publication - Agus Dwi Wicaksono
Regional and Urban Planning Department, Faculty of Engineering, Universitas Brawijaya, Malang 65145, Indonesia
1 shared publication - Aidha Auliah
Regional and Urban Planning Department, Faculty of Engineering Universitas Brawijaya, Malang 65142, Indonesia
1 shared publication
Latest Publications
- Open Access
- 15 September 2025
- Published by MDPI AG in Tourism and Hospitality
- Vol. 6 (4) , 177
Inclusive Creative Tourism Through Batik Ciprat: Empowering Individuals with Intellectual Disabilities in Karangpatihan Village—Indonesia
This study examines how Batik Ciprat functions as a vehicle for inclusive creative tourism in Karangpatihan Village, Indonesia, whereby individuals with intellectual disabilities contribute to a socially impactful rural tourism model. Grounded in social capital theory, we analyse how trust, social networks, and inclusive norms enable empowerment and help establish a distinctive, inclusion-oriented tourism identity. Using a qualitatively led mixed-methods (sequential exploratory) design with partial least squares-structural equation modelling (PLS-SEM), we identify key pathways through which art-based entrepreneurship supports village branding and visitor engagement. Our findings indicate that when social innovation is embedded in cultural tourism, it catalyses local pride, participation, and quality of life gains. The study contributes to debates on inclusive/accessible tourism, demonstrating that creative industries can act as engines of equitable, community-based development in rural settings.
- 15 September 2025
- Published by MDPI AG in Tourism and Hospitality
- Vol. 6 (4) , 177
Open AccessInclusive Creative Tourism Through Batik Ciprat: Empowering Individuals with Intellectual Disabilities in Karangpatihan Village—Indonesia
This study examines how Batik Ciprat functions as a vehicle for inclusive creative tourism in Karangpatihan Village, Indonesia, whereby individuals with intellectual disabilities contribute to a socially impactful rural tourism model. Grounded in social capital theory, we analyse how trust, social networks, and inclusive norms enable empowerment and help establish a distinctive, inclusion-oriented tourism identity. Using a qualitatively led mixed-methods (sequential exploratory) design with partial least squares-structural equation modelling (PLS-SEM), we identify key pathways through which art-based entrepreneurship supports village branding and visitor engagement. Our findings indicate that when social innovation is embedded in cultural tourism, it catalyses local pride, participation, and quality of life gains. The study contributes to debates on inclusive/accessible tourism, demonstrating that creative industries can act as engines of equitable, community-based development in rural settings.
- Open Access
Exploring the Role of Food Security in Stunting Prevention Efforts in the Bondowoso Community, Indonesia
Stunting—defined by the World Health Organization as a height-for-age z-score < −2 SD—signals chronic undernutrition that impairs both physical and cognitive development. This study investigates how the three pillars of food security (availability, access, utilization) influence stunting prevention efforts in the Bondowoso Regency, East Java, Indonesia. A cross-sectional survey of 113 mothers of stunted children (0–59 months) was analysed with Structural Equation Modelling using Partial Least Squares (PLS-SEM). The model reveals significant positive paths from food security pillars to composite stunting prevention behaviours (β = 0.18–0.86, p < 0.05), with availability emerging as the strongest predictor. These findings highlight food security as a lever for reducing the local stunting prevalence (local 32% vs. national 24.4%) and provide evidence for community-based nutrition programmes in similar agrarian districts. Strengthening food security is therefore essential to safeguarding child well-being in vulnerable Indonesian communities.
Open AccessExploring the Role of Food Security in Stunting Prevention Efforts in the Bondowoso Community, Indonesia
Stunting—defined by the World Health Organization as a height-for-age z-score < −2 SD—signals chronic undernutrition that impairs both physical and cognitive development. This study investigates how the three pillars of food security (availability, access, utilization) influence stunting prevention efforts in the Bondowoso Regency, East Java, Indonesia. A cross-sectional survey of 113 mothers of stunted children (0–59 months) was analysed with Structural Equation Modelling using Partial Least Squares (PLS-SEM). The model reveals significant positive paths from food security pillars to composite stunting prevention behaviours (β = 0.18–0.86, p < 0.05), with availability emerging as the strongest predictor. These findings highlight food security as a lever for reducing the local stunting prevalence (local 32% vs. national 24.4%) and provide evidence for community-based nutrition programmes in similar agrarian districts. Strengthening food security is therefore essential to safeguarding child well-being in vulnerable Indonesian communities.
- Open Access
Reciprocity and Social Capital for Sustainable Rural Development
This study investigates the influence of human intellectual and social capital on the reciprocity (mutual exchange) between non-tourist populations and actors in the Kampung Coklat tourism of Plosorejo village, Indonesia. The existence of a sense of trust, mutual respect, and social networks between communities are important values in the dimension of social capital and form interchange between communities. The question in this research is whether interpersonal trust has a beneficial impact on relationship social capital and whether the existence of trust, social networks, and social norms has a beneficial impact on community reciprocity. The findings indicate that social capital is pivotal in advancing cocoa tourism, especially for individuals not directly involved in the tourism industry.
Open AccessReciprocity and Social Capital for Sustainable Rural Development
This study investigates the influence of human intellectual and social capital on the reciprocity (mutual exchange) between non-tourist populations and actors in the Kampung Coklat tourism of Plosorejo village, Indonesia. The existence of a sense of trust, mutual respect, and social networks between communities are important values in the dimension of social capital and form interchange between communities. The question in this research is whether interpersonal trust has a beneficial impact on relationship social capital and whether the existence of trust, social networks, and social norms has a beneficial impact on community reciprocity. The findings indicate that social capital is pivotal in advancing cocoa tourism, especially for individuals not directly involved in the tourism industry.
- Open Access
- 3 July 2023
- Published by State University of Medan in NIAGAWAN
- Vol. 12 (2) , 118-130
PENERAPAN METODE BUSINESS MODEL CANVAS DAN PETA EMPATI PADA USAHA MIKRO KECIL DAN MENENGAH (UMKM) KEBAB DURIAN UCOK
The research explores the development of a business model for UMKM Kebab Durian Ucok using business model canvas analysis, empathy maps, and gap analysis. As an MSME, Kebab Durian Ucok plays an important role in the national economy. Understanding the business model, customer needs, and identifying performance gaps is critical to Kebab Durian Ucok's continued growth and competitiveness.The study begins by providing an overview of the challenges faced by Kebab Durian Ucok as MSMEs in the food industry and emphasizing the importance of strategic planning in business. This study provides an overview and relevance of business model canvas analysis, empathy maps, and gap analysis of business competition.The research framework begins with digging up internal information related to the initial description of the strategy and business model that will produce a value proposition, then an analysis of customer insights with an empathy map is carried out to obtain information from the external side that will produce a customer value proposition, from these results a gap analysis is carried out. The gap is then used as material for evaluating the improvement of the strategy using the new business model canvas.The results obtained are in the form of nine block elements of the UMKM Kebab Durian Ucok canvas business model, the needs and desires of customers consisting of product taste, price suitability, product variety, fresh durian content, texture, and service, as well as the gap between the value proposition and the customer's value proposition. The gap is in the aspects of product attractiveness, information reach, price suitability, and service. The recommended business model strategy is the addition of value proposition, key activities, channels, and key partners element blocks.
- 3 July 2023
- Published by State University of Medan in NIAGAWAN
- Vol. 12 (2) , 118-130
Open AccessPENERAPAN METODE BUSINESS MODEL CANVAS DAN PETA EMPATI PADA USAHA MIKRO KECIL DAN MENENGAH (UMKM) KEBAB DURIAN UCOK
The research explores the development of a business model for UMKM Kebab Durian Ucok using business model canvas analysis, empathy maps, and gap analysis. As an MSME, Kebab Durian Ucok plays an important role in the national economy. Understanding the business model, customer needs, and identifying performance gaps is critical to Kebab Durian Ucok's continued growth and competitiveness.The study begins by providing an overview of the challenges faced by Kebab Durian Ucok as MSMEs in the food industry and emphasizing the importance of strategic planning in business. This study provides an overview and relevance of business model canvas analysis, empathy maps, and gap analysis of business competition.The research framework begins with digging up internal information related to the initial description of the strategy and business model that will produce a value proposition, then an analysis of customer insights with an empathy map is carried out to obtain information from the external side that will produce a customer value proposition, from these results a gap analysis is carried out. The gap is then used as material for evaluating the improvement of the strategy using the new business model canvas.The results obtained are in the form of nine block elements of the UMKM Kebab Durian Ucok canvas business model, the needs and desires of customers consisting of product taste, price suitability, product variety, fresh durian content, texture, and service, as well as the gap between the value proposition and the customer's value proposition. The gap is in the aspects of product attractiveness, information reach, price suitability, and service. The recommended business model strategy is the addition of value proposition, key activities, channels, and key partners element blocks.
- Open Access
Structural Equation Model (SEM) of Social Capital with Landowner Intention
The continuous loss of farmland in Indonesia is a major problem in the food production industry. The Gempol-Pandaan road, which is a section of the Trans Java toll road and connects the major cities of Surabaya and Malang, gives the Pandaan District of Indonesia its strategic location. Sustainable Food Agriculture Land (SFAL) in the Pandaan District is one strategy for expanding wetland farming. Therefore, this research aims to analyze the connection between social capital and landowners’ intention to alter SFAL in Pandaan District, Pasuruan Regency, hoping to resolve existing land-use conflicts. The purpose of this study was to use partial least square structural equation modeling (PLS-SEM) to the question of how landowners’ social capital is related to their intention to change land use. The PLS-SEM analysis shows that there are less opportunities for SFAL landowners to shift land use when social capital is high. Conversely, greater intentions among SFAL landowners to convert agricultural land to nonagricultural uses are associated with weaker or lower relationships among social capital characteristics.
Open AccessStructural Equation Model (SEM) of Social Capital with Landowner Intention
The continuous loss of farmland in Indonesia is a major problem in the food production industry. The Gempol-Pandaan road, which is a section of the Trans Java toll road and connects the major cities of Surabaya and Malang, gives the Pandaan District of Indonesia its strategic location. Sustainable Food Agriculture Land (SFAL) in the Pandaan District is one strategy for expanding wetland farming. Therefore, this research aims to analyze the connection between social capital and landowners’ intention to alter SFAL in Pandaan District, Pasuruan Regency, hoping to resolve existing land-use conflicts. The purpose of this study was to use partial least square structural equation modeling (PLS-SEM) to the question of how landowners’ social capital is related to their intention to change land use. The PLS-SEM analysis shows that there are less opportunities for SFAL landowners to shift land use when social capital is high. Conversely, greater intentions among SFAL landowners to convert agricultural land to nonagricultural uses are associated with weaker or lower relationships among social capital characteristics.
- Open Access
- 30 June 2022
- Published by Universitas Islam Negeri Ar-Raniry in Elkawnie
- Vol. 8 (1) , 190-208
The Total Phenolic, Total Flavonoid, and Brown Pigment in Honey Before and After Heating
: Honey has unique components, a characteristic that makes it a valuable food for consumers. It is known that UV radiation and heating impact the quality of honey's bioactive compounds, including total phenolic, total flavonoid, and brown pigment contents. The absorbance of brown pigment at a wavelength of 420 nm, total phenolic at a wavelength of 733 nm, and total flavonoid at a wavelength of 430 nm was measured using a UV-Vis spectrophotometer. The method used in the total phenolic test was the Folin-Ciocalteu method with gallic acid standard (mgGAE/g sample). In contrast, for flavonoids, the method used was the colorimetric method with quercetin standard (mg QE/g sample). The qualitative test results showed that all honey samples contained phenolic and flavonoid compounds. Total phenolic and flavonoid levels showed a decrease in several samples, including TR SLT (Trigona Southeast Sulawesi), TRG BGR (Trigona Bogor), and TR SLS (Trigona Genotrigona Indica South Sulawesi) in the range of 11.8–57.6%. However, most of the total phenolic and flavonoid levels increased after the heating process, i.e., in the samples of AP LMB (apis North Lombok) (25.3% and 88.8%), AP MG (apis mango) (73.1% and 114%), AP MAC (Aceh honey, Buloh Seuma) (8.8% and 199%), TR BIR (Trigona tetroginola biroi South Sulawesi) (58.8% and 146%), and TR LMB (Trigona North Lombok) (44.3% and 84.9%). In contrast, for the formation of brown pigment, there was an increase in all honey samples between 32 and 1.428%. The presence of brown pigment at the end of the heating process of honey samples is thought to have the same role as phenolic compounds and flavonoids, which change the heating process, especially in antioxidant activities and other bioactivities. However, further analysis is needed to prove the conjecture.Abstrak: Madu memiliki komponen yang unik, yang membuatnya menjadi makanan yang berharga bagi konsumen. Telah diketahui bahwa radiasi UV dan pemanasan berdampak pada kualitas senyawa bioaktif madu, di antaranya kandungan total fenolik, total flavonoid, dan pigmen coklat. Pengukuran absorbansi pigmen coklat pada panjang gelombang 420 nm, pengukuran total fenolik pada panjang gelombang 733 nm dan total flavonoid pada panjang gelombang 430 nm dilakukan menggunakan spektrofotometer UV-Vis. Metode yang digunakan untuk uji total fenolik adalah metode Folin-Ciocalteu dengan standar asam Galat (mgGAE/g sampel), uji flavonoid menggunakan metode Kolorimetri dengan standar kuersetin (mg QE/g sampel). Hasil uji kualitatif menunjukan bahwa semua sampel madu terdapat senyawa fenolik dan flavonoid. Kadar total fenolik dan flavonoid menunjukkan penurunan pada beberapa sampel, di antaranya TR SLT (Trigona Sulawesi Tenggara, TRG BGR (Trigona Bogor), TR SLS (Trigona Genotrigona Insica Sulawesi Selatan) pada kisaran 11,8 – 57,6%. Namun, sebagian besar kadar total fenolik dan kadar flavonoid mengalami kenaikan setelah proses pemanasan, yaitu pada sampel AP LMB (apis Lombok Utara) (25,3% dan 88,8%), AP MG (apis mangga) (73,1% dan 114%), AP MAC (madu Aceh, Buloh Seuma) (8,8% dan 199%), TR BIR (Trigona Tetroginola biroi sulawesi selatan) (58,8% dan 146%), TR LMB (Trigona North Lombok) (44,3% dan 84,9), sedangkan untuk pembentukan pigmen coklat, terjadi peningkatan pada semua sampel madu di antara 32 – 1.428%. Keberadaan pigmen coklat pada akhir proses pemanasan, diduga memiliki peran yang sama dengan senyawa fenolik dan flavonoid yang mengalami perubahan selama proses pemanasan, terutama pada aktivitas antioksidan dan bioaktivitas lainnya. Namun diperlukan analisis lebih lanjut untuk membuktikan dugaan tersebut.
- 30 June 2022
- Published by Universitas Islam Negeri Ar-Raniry in Elkawnie
- Vol. 8 (1) , 190-208
Open AccessThe Total Phenolic, Total Flavonoid, and Brown Pigment in Honey Before and After Heating
: Honey has unique components, a characteristic that makes it a valuable food for consumers. It is known that UV radiation and heating impact the quality of honey's bioactive compounds, including total phenolic, total flavonoid, and brown pigment contents. The absorbance of brown pigment at a wavelength of 420 nm, total phenolic at a wavelength of 733 nm, and total flavonoid at a wavelength of 430 nm was measured using a UV-Vis spectrophotometer. The method used in the total phenolic test was the Folin-Ciocalteu method with gallic acid standard (mgGAE/g sample). In contrast, for flavonoids, the method used was the colorimetric method with quercetin standard (mg QE/g sample). The qualitative test results showed that all honey samples contained phenolic and flavonoid compounds. Total phenolic and flavonoid levels showed a decrease in several samples, including TR SLT (Trigona Southeast Sulawesi), TRG BGR (Trigona Bogor), and TR SLS (Trigona Genotrigona Indica South Sulawesi) in the range of 11.8–57.6%. However, most of the total phenolic and flavonoid levels increased after the heating process, i.e., in the samples of AP LMB (apis North Lombok) (25.3% and 88.8%), AP MG (apis mango) (73.1% and 114%), AP MAC (Aceh honey, Buloh Seuma) (8.8% and 199%), TR BIR (Trigona tetroginola biroi South Sulawesi) (58.8% and 146%), and TR LMB (Trigona North Lombok) (44.3% and 84.9%). In contrast, for the formation of brown pigment, there was an increase in all honey samples between 32 and 1.428%. The presence of brown pigment at the end of the heating process of honey samples is thought to have the same role as phenolic compounds and flavonoids, which change the heating process, especially in antioxidant activities and other bioactivities. However, further analysis is needed to prove the conjecture.Abstrak: Madu memiliki komponen yang unik, yang membuatnya menjadi makanan yang berharga bagi konsumen. Telah diketahui bahwa radiasi UV dan pemanasan berdampak pada kualitas senyawa bioaktif madu, di antaranya kandungan total fenolik, total flavonoid, dan pigmen coklat. Pengukuran absorbansi pigmen coklat pada panjang gelombang 420 nm, pengukuran total fenolik pada panjang gelombang 733 nm dan total flavonoid pada panjang gelombang 430 nm dilakukan menggunakan spektrofotometer UV-Vis. Metode yang digunakan untuk uji total fenolik adalah metode Folin-Ciocalteu dengan standar asam Galat (mgGAE/g sampel), uji flavonoid menggunakan metode Kolorimetri dengan standar kuersetin (mg QE/g sampel). Hasil uji kualitatif menunjukan bahwa semua sampel madu terdapat senyawa fenolik dan flavonoid. Kadar total fenolik dan flavonoid menunjukkan penurunan pada beberapa sampel, di antaranya TR SLT (Trigona Sulawesi Tenggara, TRG BGR (Trigona Bogor), TR SLS (Trigona Genotrigona Insica Sulawesi Selatan) pada kisaran 11,8 – 57,6%. Namun, sebagian besar kadar total fenolik dan kadar flavonoid mengalami kenaikan setelah proses pemanasan, yaitu pada sampel AP LMB (apis Lombok Utara) (25,3% dan 88,8%), AP MG (apis mangga) (73,1% dan 114%), AP MAC (madu Aceh, Buloh Seuma) (8,8% dan 199%), TR BIR (Trigona Tetroginola biroi sulawesi selatan) (58,8% dan 146%), TR LMB (Trigona North Lombok) (44,3% dan 84,9), sedangkan untuk pembentukan pigmen coklat, terjadi peningkatan pada semua sampel madu di antara 32 – 1.428%. Keberadaan pigmen coklat pada akhir proses pemanasan, diduga memiliki peran yang sama dengan senyawa fenolik dan flavonoid yang mengalami perubahan selama proses pemanasan, terutama pada aktivitas antioksidan dan bioaktivitas lainnya. Namun diperlukan analisis lebih lanjut untuk membuktikan dugaan tersebut.
- 31 October 2021
- Published by International Information and Engineering Technology Association in International Journal of Sustainable Development and Planning
- Vol. 16 (6) , 1177-1183
The Concept for the Development of Biogas as Renewable Energy in Rural Indonesia
Indonesia policy in Presidential Regulation No. 5 of 2006 on National Energy Management 2006-2025 states that one of its tasks is the ethical and sustainable management of energy, including the maintenance of environmental functions and increasing the role of new and renewable energy to 5% by 2025. In response to this problem, an effort is needed to meet the Indonesian people's energy needs. One of the programs of the Indonesian government is the implementation of an energy-independent village program. Jimbaran Village is one of the villages that have the potential to develop into an Energy Independent Village. The majority of Jimbaran Village residents work as cattle breeders, i.e., 1,663 families. The average farmer in Jimbaran Village has 3-4 cows/family heads with a total of 5,976 dairy cows. However, of the many existing breeders, no one has processed cow waste into biogas, which is a source of renewable energy. Animal waste may also be used to develop the clove and coffee plantation sector when processed into compost. Livestock waste is only dumped into sewers or human yards, so the environment is very polluting. It is, therefore, necessary to process livestock waste into biogas or compost. The analysis technique used in calculating the plan for the production of communal biogas is the analysis of supply, demand, and energy performance. Based on the calculation of the energy performance, it can be seen that the energy performance is more than 100 percent, which means that there is an excess of energy generated by existing biogas. Excessive energy can be allocated to other energy needs, such as electricity so that people can convert their current source of electrical energy from PLN to biogas.
- 31 October 2021
- Published by International Information and Engineering Technology Association in International Journal of Sustainable Development and Planning
- Vol. 16 (6) , 1177-1183
The Concept for the Development of Biogas as Renewable Energy in Rural Indonesia
Indonesia policy in Presidential Regulation No. 5 of 2006 on National Energy Management 2006-2025 states that one of its tasks is the ethical and sustainable management of energy, including the maintenance of environmental functions and increasing the role of new and renewable energy to 5% by 2025. In response to this problem, an effort is needed to meet the Indonesian people's energy needs. One of the programs of the Indonesian government is the implementation of an energy-independent village program. Jimbaran Village is one of the villages that have the potential to develop into an Energy Independent Village. The majority of Jimbaran Village residents work as cattle breeders, i.e., 1,663 families. The average farmer in Jimbaran Village has 3-4 cows/family heads with a total of 5,976 dairy cows. However, of the many existing breeders, no one has processed cow waste into biogas, which is a source of renewable energy. Animal waste may also be used to develop the clove and coffee plantation sector when processed into compost. Livestock waste is only dumped into sewers or human yards, so the environment is very polluting. It is, therefore, necessary to process livestock waste into biogas or compost. The analysis technique used in calculating the plan for the production of communal biogas is the analysis of supply, demand, and energy performance. Based on the calculation of the energy performance, it can be seen that the energy performance is more than 100 percent, which means that there is an excess of energy generated by existing biogas. Excessive energy can be allocated to other energy needs, such as electricity so that people can convert their current source of electrical energy from PLN to biogas.
- 23 April 2021
- Published by International Information and Engineering Technology Association in International Journal of Sustainable Development and Planning
- Vol. 16 (2) , 229-236
Land Suitability and Economic Performance in the Pasuruan Region for Coffee Development
The identification of superior commodities is one of the initial stages of the development of the agro-policy area. This study aims to identify the leading agricultural commodities, land suitability, and the Pasuruan Regency's economic performance. Determination of superior commodities using Location Quotient (LQ) analysis, shift-share analysis, land suitability analysis, potency and problem analysis, and final analysis of district government policy. We found that coffee is the most widely produced plantation commodity in Pasuruan Regency. The shift-share analysis shows that coffee and tobacco grow faster than any other commodity. The land suitability analysis shows that coconut, coffee, cane, and tobacco could be planted in all Pasurua Regency areas. The Government should support coffee's economic performance in the provision of seed, training, organization of coffee events, and sale of coffee processing technology. However, several areas need to be addressed, including cooperative enterprises, agricultural terminals, and business certainty. Besides, cooperation with other industries is also needed to develop international markets.
- 23 April 2021
- Published by International Information and Engineering Technology Association in International Journal of Sustainable Development and Planning
- Vol. 16 (2) , 229-236
Land Suitability and Economic Performance in the Pasuruan Region for Coffee Development
The identification of superior commodities is one of the initial stages of the development of the agro-policy area. This study aims to identify the leading agricultural commodities, land suitability, and the Pasuruan Regency's economic performance. Determination of superior commodities using Location Quotient (LQ) analysis, shift-share analysis, land suitability analysis, potency and problem analysis, and final analysis of district government policy. We found that coffee is the most widely produced plantation commodity in Pasuruan Regency. The shift-share analysis shows that coffee and tobacco grow faster than any other commodity. The land suitability analysis shows that coconut, coffee, cane, and tobacco could be planted in all Pasurua Regency areas. The Government should support coffee's economic performance in the provision of seed, training, organization of coffee events, and sale of coffee processing technology. However, several areas need to be addressed, including cooperative enterprises, agricultural terminals, and business certainty. Besides, cooperation with other industries is also needed to develop international markets.