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The Potential of Weissella confusa K2 Isolated from Longan (Dimocarpus longan) Fruit as High Exopolysaccharide-Producing Strain Ma'unatin, Anik; Khoirumiyah, Afifatul Fitri
HAYATI Journal of Biosciences Vol. 31 No. 3 (2024): May 2024
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.31.3.539-547

Abstract

Isolation of Lactic Acid Bacteria (LAB) from various sources has previously been carried out to obtain strains that produce high of exopolysaccharide (EPS). Isolate K2, which was LAB isolated from longan (Dimocarpus longan) fruit, can produce EPS. This study aimed to identify isolate K2, and evaluated the effect of supplementation carbon sources (glucose, fructose, sucrose, and lactose) and pH of media (4, 5, 6, 7, and 8) on EPS production. Isolate K2 was identified as Weissella confusa molecularly based on 16S rDNA, the type of carbon source, and the pH of media had significant effects (P<0.05) on EPS production. W. confusa K2 produced EPS that was highest on media with the supplementation of sucrose as a carbon source and produced the lowest EPS on lactose. The amount of EPS produced by W. confusa K2 under alkaline was higher than under acidic, the highest EPS of 47.703 g/L at pH 8 and the lowest EPS at pH 4 of 1.858 g/L. The physical properties showed EPS has good solubility in water with the solubility and Water Holding Capacity (WHC) at 40.533% and 354% respectively. Based on Surface morphology of EPS with Scanning Electron Microscope (SEM) analysis, the surface structure of EPS was a porous polymer matrix. Fourier Transform Infrared Spectrophotometer (FTIR) results of EPS showed the presence of absorption bands as characteristic of carbohydrates, such as the presence of O-H, C-H, C=O, C=C, C-O-C groups, and glycosidic bonds.
Sosialisasi Pembuatan Yoghurt Kacang Tanah sebagai Pemberdayaan Masyarakat untuk Peningkatan Ekonomi Di Desa Landungsari Kecamatan Dau Kabupaten Malang Ma'unatin, Anik; Jannah, Akyunul; Sulhan, Muhammad
JRCE (Journal of Research on Community Engagement) Vol 5, No 1 (2023): Journal of Research on Community Engagement
Publisher : Universitas Islam Negeri Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/jrce.v5i1.20438

Abstract

The increase in public awareness of health during the Covid 19 pandemic was accompanied by an increasing need for functional food including probiotic drinks. One of the efforts to diversify yogurt is by using peanuts as a substitute for cow's milk. The production of peanuts which is quite a lot in Malang allows it to be processed into Plant-based yogurt. As an effort to increase independence in the field of entrepreneurship in peanut-producing area in  Desa Landungsari Kecamatan Dau Malang, it was necessary to provide socialization on making peanut yogurt and business development through the digital economy by the program team serving Qaryah Thayyibah UIN Maulana Maliki Ibrahim Malang.