Life cycle assessment on a small scale tofu industry in Baturetno village – Bantu District - Yogyakarta

Kurniawati, Selma; Supartono, Wahyu; Suyantohadi, Atris

doi:10.1088/1755-1315/365/1/012066

Cited by 11 publications

(7 citation statements)

References 3 publications

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“…Making tofu is relatively easy and inexpensive, because of that, the majority of Indonesian businesses have a strong interest with it [1]. The tofu production process has a continuous process, starting from washing, soaking, grinding, boiling, filtering and pressing the tofu pulp until ready for distribution to market and consumption by consumers [2]. One of the important issues for Indonesia is food security [3].…”

Section: Introductionmentioning

confidence: 99%

Comparative Life Cycle Assessment (LCA) of two tofu industries that uses different energy sources for production processes

Azatri,

Aziz,

Goembira

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Tofu industry is engaged in processing food made from soybeans, which has a significant contribution to emissions. Padang City has 12 tofu industries, including the ‘A’ tofu industry and ‘B’ tofu industry. The ‘A’ tofu industry and ‘B’ tofu industry produce 990 kg and 2,400 kg of tofu/day, respectively. The difference between them is the application of briquettes and diesel fuel in ‘A’ tofu industry, while ‘B’ tofu industry uses firewood and electricity for boiling and milling processes. Therefore, this study purpose to analyze the environmental impact of 1 kg of tofu using the Life Cycle Assessment method with SimaPro ver.9.0. A gate-to-gate approach was used. The result of the characterization impact on the environment is ‘B’ tofu industry had the highest impact than ‘A’ tofu industry, marine aquatic ecotoxicity 645.69 and 419.91 kg1.4-DBeq, human toxicity 39.81 and 0.33 kg1.4-DBeq, global warming potential 36.96 and 16.68 kgCO2eq, abiotic depletion 15.02 and 13.27 MJ, fresh water aquatic ecotoxicity 2 kg1.4-DBeq and acidification 0.01 and 0.0075 kgSO2eq. A component that contributes to harmed the environment is the boiling process. From the result, several alternatives can be recommended, replacing fuel for the boiling process with briquettes and treating liquid waste with an aerobic-anaerobic-biofilter.

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Section: Introductionmentioning

confidence: 99%

Comparative Life Cycle Assessment (LCA) of two tofu industries that uses different energy sources for production processes

Azatri,

Aziz,

Goembira

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…The boundary system used in the study limited to the production process, namely a boundary system from gate to gate. Other LCA studies used this boundary system to calculate the impact of GHG emissions from tofu production have been carried out by Kurniawati et al (2019) and Sukmana et al (2019). There is no paper discussed the GHG emission from tofu production in Indonesia using more extensive system boundary for the LCA methodology.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Potential GHG Emissions from Tofu Industry and Its Mitigation in Indonesia

PUTRI

WALUYO

2022

Jurtekling

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ABSTRAK Tahu merupakan salah satu sumber protein dengan permintaan yang tinggi di Indonesia. Saat ini beberapa industri tahu telah menggunakan peralatan-peralatan berbahan dasar stainless steel. Kondisi ini menunjukkan keseriusan industri tahu untuk membuat produk tahu yang higienis. Namun, produk tahu yang higienis saja tidaklah cukup. Persaingan pasar global menuntut sebuah produk tidak hanya memperhatikan kualitas, namun juga menjadi produk yang ramah lingkungan dengan ditandai oleh nilai emisi CO2 yang rendah. Sejalan dengan kondisi tersebut, maka studi terkait dengan perhitungan emisi CO2 yang dihasilkan oleh sebuah produk menjadi hal yang perlu diutamakan. Pada studi ini dilakukan penelitian estimasi emisi CO2 yang dihasilkan dari 1 kg tahu dengan menggunakan metode LCA dan menerapkan batasan sistem from cradle to gate, yakni penghitungan emisi Gas Rumah Kaca (GRK) dihitung dari penanaman kedelai hingga menjadi 1 kg produk tahu. Studi kasus dilakukan pada 3 industri tahu dan diketahui bahwa emisi GRK yang dihasilkan per 1 kg tahu berada pada rentang 0,35–0,5 kg CO2 eq. Faktor utama penyumbang emisi CO2 berasal dari air limbah hasil dari proses produksi, diikuti budidaya kedelai dan transportasi bahan baku kedelai dari perkebunan menuju ke industri. Hasil penelitian ini memberikan rekomendasi kepada industri tahu untuk mengurangi emisi CO2 yang dihasilkan dari limbah cair proses produksi tahu. Alternatif pengolahan limbah cair yakni dengan mengolah air limbah menggunakan sistem anaerobik guna menghasilkan biogas yang digunakan untuk kebutuhan memasak. Kata kunci: Kedelai, Tahu, LCA, Emisi GRK, Limbah cair ABSTRACT Tofu is one of the protein sources with high demand in Indonesia. Currently, several tofu industries have used stainless steel-based equipment. This condition shows the seriousness of the tofu industry to make hygienic tofu products. However, hygienic tofu products are not enough. The global market competition required the products to take notice not only of their quality but also of environmentally-friendly products characterized by a low value of CO2 emission. In accordance with the condition, studies related to calculating CO2 emissions resulting from a product are necessary. In this study, we conducted research on the estimation of CO2 emissions resulting from 1 kg of tofu using the LCA method and applying the system boundary from cradle to gate, in which greenhouse gas (GHG) emissions were calculated from soybeans plantation to 1 kg of tofu products. Case studies were conducted on three tofu industries, and it was found that the GHG emissions produced per 1 kg of tofu were in the range of 0.35–0.5 kg CO2 eq. Three main factors contribute to CO2 emissions, i.e., wastewater, soybean cultivation, and soybean transportation from plantation area to industry. Therefore, this study recommends the tofu industry reduce CO2 emissions resulting from wastewater. The alternative is to treat wastewater using an anaerobic system to produce biogas for cooking purposes. Keywords: Soybeans, Tofu, Life Cycle Assessment (LCA), GHG emissions, Wastewater

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“…Tofu liquid waste influences chemical and physical properties as well as aquatic organisms if it is not managed [3]. Small and medium industries are characterized as industries that have low energy efficiency and high levels of pollution [4].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Global Warming Potential in Tofu Industry (Case Study: Industry X, Gresik)

Rahmawati

Auvaria

Nengse

et al. 2022

JSE

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Tofu industry is one of the many SMEs operating in Indonesia. These industrial activities have the potential to have an impact on the environment. Industry X, Gresik has an average production capacity of 600-900 kg of tofu every day. The main energy used to produce tofu is firewood. The average daily use of firewood in this industry is 1,520 kg. Burning wood has the potential to cause global warming. In addition, this industry also does not manage its liquid waste which has the potential to cause pollution in aquatic ecosystems. The purpose of this research is to analyze the potential environmental impact of the tofu production process. Data collection methods include observation, interviews, and direct measurement. Data analysis using Life Cycle Assessment method and SimaPro 9.4 Software. Environmental impact assessment using the CML-IA (baseline) method. Based on the results of Simapro analysis, the global warming potential impact is 2,95 x 108 kgCO2-eq

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Life cycle assessment on a small scale tofu industry in Baturetno village – Bantu District - Yogyakarta

Cited by 11 publications

References 3 publications

Comparative Life Cycle Assessment (LCA) of two tofu industries that uses different energy sources for production processes

Comparative Life Cycle Assessment (LCA) of two tofu industries that uses different energy sources for production processes

Analysis of Potential GHG Emissions from Tofu Industry and Its Mitigation in Indonesia

Analysis of Global Warming Potential in Tofu Industry (Case Study: Industry X, Gresik)

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