Utilization of tofu liquid waste for the manufacture of bioplastic food packaging
Bioplastic food packaging is manufactured from natural ingredients with no threat of polluting the environment. There have been no reports using tofu liquid waste as material for making bioplastics using sorbitol concentration treatment. Therefore, this study aimed to determine the effect of sorbito...
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Elsevier
2024-12-01
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| Series: | Case Studies in Chemical and Environmental Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S266601642400224X |
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| author | Ratna Ratna Mutia Mutia Darwin Darwin Agus Arip Munawar Fitriani Fitriani Lia Handayani |
| author_facet | Ratna Ratna Mutia Mutia Darwin Darwin Agus Arip Munawar Fitriani Fitriani Lia Handayani |
| author_sort | Ratna Ratna |
| collection | DOAJ |
| description | Bioplastic food packaging is manufactured from natural ingredients with no threat of polluting the environment. There have been no reports using tofu liquid waste as material for making bioplastics using sorbitol concentration treatment. Therefore, this study aimed to determine the effect of sorbitol concentration on the characteristics of bioplastic generated from tofu liquid waste. Before being processed into bioplastic, tofu liquid waste was analyzed for carbohydrates, pH, protein, biological and chemical oxygen demand, as well as total and volatile solids. Data were analyzed with one-way analysis of variance (ANOVA), while sorbitol concentrations used were 0 %, 1 %, 2 %, 4 %, and 8 % with three repetitions. The results of analysis of tofu liquid waste show that this waste can be used as material for making bioplastics. The results showed that the bioplastic produced had thickness values ranging from 0.049 to 0.365 mm, water vapor permeability rates of 0.239–4.644 g m−2 h−1, tensile strength of 146, 3 to 186.3 kgf. cm−2, and elongation of 8.52–150.227 %. Variations in sorbitol concentrations had a significant effect on the thickness and elongation values but not on water vapor permeability rate and tensile strength. The best result was obtained with 1 % sorbitol concentration, which produced bioplastic with a thickness value of 0.110 mm, water vapor permeability rate of 0.584 g m−2 h−1, tensile strength of 146.3 kgf. cm−2, and elongation of 97, 04 %. |
| format | Article |
| id | doaj-art-15b6f2db99ef4c82a97dbbe25ea7b474 |
| institution | OA Journals |
| issn | 2666-0164 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Chemical and Environmental Engineering |
| spelling | doaj-art-15b6f2db99ef4c82a97dbbe25ea7b4742025-08-20T02:36:06ZengElsevierCase Studies in Chemical and Environmental Engineering2666-01642024-12-011010083010.1016/j.cscee.2024.100830Utilization of tofu liquid waste for the manufacture of bioplastic food packagingRatna Ratna0Mutia Mutia1Darwin Darwin2Agus Arip Munawar3Fitriani Fitriani4Lia Handayani5Department of Agricultural Engineering, Universitas Syiah Kuala, Darussalam, Banda Aceh 23111, Indonesia; Corresponding author.Department of Agricultural Engineering, Universitas Syiah Kuala, Darussalam, Banda Aceh 23111, IndonesiaDepartment of Agricultural Engineering, Universitas Syiah Kuala, Darussalam, Banda Aceh 23111, IndonesiaDepartment of Agricultural Engineering, Universitas Syiah Kuala, Darussalam, Banda Aceh 23111, IndonesiaResearch Center for Agroindustry, National Research and Innovation Agency (BRIN), South Tanggerang 15314, IndonesiaDepartment of Fisheries Product Technology, Universitas Abulyatama, Aceh Besar, IndonesiaBioplastic food packaging is manufactured from natural ingredients with no threat of polluting the environment. There have been no reports using tofu liquid waste as material for making bioplastics using sorbitol concentration treatment. Therefore, this study aimed to determine the effect of sorbitol concentration on the characteristics of bioplastic generated from tofu liquid waste. Before being processed into bioplastic, tofu liquid waste was analyzed for carbohydrates, pH, protein, biological and chemical oxygen demand, as well as total and volatile solids. Data were analyzed with one-way analysis of variance (ANOVA), while sorbitol concentrations used were 0 %, 1 %, 2 %, 4 %, and 8 % with three repetitions. The results of analysis of tofu liquid waste show that this waste can be used as material for making bioplastics. The results showed that the bioplastic produced had thickness values ranging from 0.049 to 0.365 mm, water vapor permeability rates of 0.239–4.644 g m−2 h−1, tensile strength of 146, 3 to 186.3 kgf. cm−2, and elongation of 8.52–150.227 %. Variations in sorbitol concentrations had a significant effect on the thickness and elongation values but not on water vapor permeability rate and tensile strength. The best result was obtained with 1 % sorbitol concentration, which produced bioplastic with a thickness value of 0.110 mm, water vapor permeability rate of 0.584 g m−2 h−1, tensile strength of 146.3 kgf. cm−2, and elongation of 97, 04 %.http://www.sciencedirect.com/science/article/pii/S266601642400224XTofu liquid wasteBioplasticPackagingPlasticizerBiodegradable |
| spellingShingle | Ratna Ratna Mutia Mutia Darwin Darwin Agus Arip Munawar Fitriani Fitriani Lia Handayani Utilization of tofu liquid waste for the manufacture of bioplastic food packaging Case Studies in Chemical and Environmental Engineering Tofu liquid waste Bioplastic Packaging Plasticizer Biodegradable |
| title | Utilization of tofu liquid waste for the manufacture of bioplastic food packaging |
| title_full | Utilization of tofu liquid waste for the manufacture of bioplastic food packaging |
| title_fullStr | Utilization of tofu liquid waste for the manufacture of bioplastic food packaging |
| title_full_unstemmed | Utilization of tofu liquid waste for the manufacture of bioplastic food packaging |
| title_short | Utilization of tofu liquid waste for the manufacture of bioplastic food packaging |
| title_sort | utilization of tofu liquid waste for the manufacture of bioplastic food packaging |
| topic | Tofu liquid waste Bioplastic Packaging Plasticizer Biodegradable |
| url | http://www.sciencedirect.com/science/article/pii/S266601642400224X |
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