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Yulianti Fitri Kurnia
Faculty of Animal Science, Universitas Andalas. Jl. Univ. Andalas, Limau Manis, Padang 25171, West Sumatra, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Antimicrobial potential of Pediococcus acidilactici from Bekasam, fermentation of sepat rawa fish (Tricopodus trichopterus) from Banyuasin, South Sumatra, Indonesia sri Melia; Endang Purwati; Yulianti Fitri Kurnia; Dhiva Rezzy Pratama
Biodiversitas Journal of Biological Diversity Vol. 20 No. 12 (2019)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d201210

Abstract

Abstract. Melia S, Purwati E, Kurnia Y. F, Pratama D. R. 2019. Antimicrobial potential of Pediococcus acidilactici from Bekasam, fermentation of sepat rawa fish (Tricopodus trichopterus) from Banyuasin, South Sumatra, Indonesia. Biodiversitas 20: 3532-3538. This study aimed to determine the antimicrobial potential of lactic acid bacteria isolated from bekasam. Bekasam is a result of sepat rawa fermentation from Banyuasin District, South Sumatra, Indonesia. The results showed that the morphological and biochemical properties of lactic acid bacteria were Gram-positive and cocci, negative catalase and included in homofermentative groups. The biggest antimicrobial activity was shown by bekasam isolate to Escherichia coli O157: H7 (21.26 mm), followed by Staphylococcus aureus ATCC25923 (18.23 mm) and Listeria monocytogenes CFSAN004330 (5.10 mm), while diameter barriers for crude bacteriocin supernatant isolates lactic acid bacteria to Escherichia coli O157: H7, Staphylococcus aureus ATCC25923 were 14.99 mm, 17.69 mm, and Listeria monocytogenes CFSAN004330 had no antimicrobial activity at neutral pH. The results of molecular identification with 16S rRNA showed that lactic acid bacteria isolated from bekasam isolate have similarity with Pediococcus acidilactici strain PB22 that has antimicrobial potential against pathogenic bacteria and potential as bio preservatives.
The quality of fermented goat milk produced by Pediococcus acidilactici BK01 on refrigerator temperature sri Melia; Indri Juliyarsi; Yulianti Fitri Kurnia; Yudha Endra Pratama; Dhiva Rezzy Pratama
Biodiversitas Journal of Biological Diversity Vol. 21 No. 10 (2020)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d211017

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Abstract. Melia S, Juliyarsi I, Kurnia YF, Pratama YE, Pratama DR. 2020. The quality of fermented goat milk produced by Pediococcus acidilactici BK01 on refrigerator temperature. Biodiversitas 21: 4591-4596. This research aimed to determine the quality of chemical and microbiological milk of goats fermented with Pediococcus acidilactici BK01 with the storage time on refrigerator temperature. The method used is the experimental method of Completely Randomized Design with five times the treatment of goat milk fermentation at the refrigerator temperature is over 0, 7, 14, 21, and 28 days with four repetitions. The results showed long-lasting storage of real effect (P < 0.05) on water content, pH, titratable acid, total lactic acid bacteria, and total plate count, but no noticeable effect (P > 0.05) on the protein levels and milk fat fermentation during the resulting storage. The value of moisture content during storage ranges between 85.88-84.92%, pH 4.48-4.28 , 3.69-3.49% fat content, 3.53-3.58% protein content, as well as the count of titratable acid ranging from 1.52-1.73%. The whole colonies of lactic acid bacteria reached between 9.106 log CFU/mL to 10.376 log CFU/mL, and the total plate count (TPC) value during storage experienced an increase from 2.653 log CFU/mL to 4.012 log CFU/mL. Based on the results of the study can be concluded that the milk of goat fermentation with P. acidilactici BK01 can maintain quality until the retention period of 28 days with the viability of lactic acid bacteria that meet the category as probiotics and still liked by the consumer.
Co-Authors Dhiva Rezzy Pratama Dhiva Rezzy Pratama Endang Purwati Indri Juliyarsi sri Melia Yudha Endra Pratama