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All Journal Jurnal Teknologi & Industri Hasil Pertanian JURNAL AGROSAINS : Karya Kreatif dan Inovatif Molekul: Jurnal Ilmiah Kimia
Dameswary, Amarilia Harsanti
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Sustainable Bioplastics Made from Cassava Peel Waste Starch and Carrageenan Formulations: Synthesis and Characterization Fadhallah, Esa Ghanim; Assa'diyah, Indah Nurul; Juwita, Nana; Tullaila, Sholeha; Yudistiro, Muhammad Kahfi Kharisma; Zuidar, Ahmad Sapta; Dameswary, Amarilia Harsanti
Molekul Vol 19 No 1 (2024)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2024.19.1.8394

Abstract

Plastic waste has become a global environmental problem as it is difficult to decompose and harms the environment. The alternative solution to overcome this problem is to produce biodegradable plastics made from renewable materials. Cassava peel waste contains starch that can form a thin film but has poor mechanical properties. Therefore, it is necessary to include additional substances to enhance its strength. Carrageenan is a substance that can improve bioplastic mechanical properties. This study aims to determine the characteristics of bioplastic made from cassava peel waste starch and carrageenan formulation. Nine formulations were tested in this study using the randomized complete block design factorial with the two factors of cassava peel starch (S) and carrageenan (C) concentrations, both at three levels and carried out under three replications. Bioplastics characteristics are observed in thickness, swelling, biodegradation, tensile strength, elongation, and elasticity. The formulation S2C1 (starch 20%; carrageenan 5%) produced the bioplastic with the best mechanical properties, including a tensile strength of 1.1 MPa, elongation of 1.33%, and elasticity of 0.87. Meanwhile, the formulation S3C1 (starch 30%; carrageenan 5%) had the best results for swelling, thickness, and biodegradability, with a swelling value of 57.79%, thickness of 0.36mm, and 11-day biodegradability.
Peningkatan Nilai Tambah Kue Lapis Ubi Jalar Ungu Sebagai Upaya Diversifikasi Pangan (Studi Kasus: Dapoer Lopita) Shalihy, Wildan; Dameswary, Amarilia Harsanti
JURNAL AGROSAINS : Karya Kreatif dan Inovatif Vol 9 No 2 (2024): JURNAL AGROSAINS : Karya Kreatif dan Inovatif
Publisher : Universitas Islam Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31102/agrosains.2024.9.2.82-91

Abstract

Processing purple sweet potatoes is an effort to diversify food and increase the added value of purple sweet potatoes. By increasing the added value of purple sweet potatoes, it will increase the income of sweet potato farmers. This research aims to determine the added value analysis of processing purple sweet potatoes into processed products in the form of Dapoer Loepita purple sweet potato layer cake. Based on the calculation results of the added value analysis of using sweet potatoes as an ingredient in making purple sweet potato flour, an added value of Rp. -57,143.5 can be said to be a loss while making purple sweet potato layer cake produces an added value of IDR. 14.0019. Keyword: purple sweet potato,flour, diversification, Manokwari
Postharvest evaluation, characteristics of yellow oyster mushroom (Pleurotus citrinopileatus): Physicochemical properties and antioxidant activity [Evaluasi pascapanen, karakteristik jamur tiram kuning (Pleurotus citrinopileatus): sifat fisikokimia dan aktifitas antioksidan] Tafzi, Fitry Tafzi; AR, Nur hasnah; Indriyani, Indriyani Indriyani; Nurfaijah, Nurfaijah Nurfaijah; Wulansari, Dian wulansari; Widianti, Oktari Mia; Dameswary, Amarilia Harsanti
Jurnal Teknologi & Industri Hasil Pertanian Vol. 29 No. 1 (2024): Jurnal Teknologi & Industri Hasil Pertanian
Publisher : Teknologi Hasil Pertanian Fakultas Pertanian Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtihp.v29i1.14-21

Abstract

The level of physiological maturity of the plant, productivity at harvest, and content in the material are all determined by harvest age, which is a component that is strongly tied to the phase of plant growth. Oyster mushrooms will undergo biochemical changes as they mature, but they will also change physically when they are harvested, especially in terms of color, texture, size, form, and the sections that may be eaten. This study aims to discover the optimal harvest age for yellow oyster mushrooms (Pleurotus citrinopileatus) based on their physical, chemical, and antioxidant activity. It also examines the impact of harvest age on the physical, chemical, and antioxidant activity of yellow oyster mushrooms (Pleurotus citrinopileatus). The design of this investigation was entirely random. This study used two harvest periods of yellow oyster mushrooms with harvest ages of 2, 3, 4, and 5 days after the appearance of pinheads as the treatment. Three times each experimental unit is repeated. The nursery, incubation, upkeep, and harvest of yellow oyster mushrooms comprised the study. The findings demonstrated that wet weight, rendemen, total phenol, and antioxidant activity of yellow oyster mushrooms were significantly influenced by harvest age. It is advised to harvest the yellow oyster mushroom on the third day after the appearance of pinheads.
Co-Authors Ahmad Sapta Zuidar AR, Nur Hasnah Assa'diyah, Indah Nurul Esa Ghanim Fadhallah Indriyani, Indriyani Indriyani Juwita, Nana Nurfaijah, Nurfaijah Nurfaijah Tafzi, Fitry Tafzi Tullaila, Sholeha Widianti, Oktari Mia Wildan Shalihy Wulansari, Dian wulansari Yudistiro, Muhammad Kahfi Kharisma