scholarly journals Identifikasi Uji Kemampuan Hidrolisis Lemak Dan Penentuan Indeks Zona Bening Asam Laktat Pada Bakteri Dalam Wadi Makanan Traditional Kalimantan Tengah

bionature ◽  
2018 ◽  
Vol 18 (2) ◽  
Author(s):  
Mirza Yanuar Rizky ◽  
Rizka Diah Fitri ◽  
Utami Sri Hastuti ◽  
Sitoresmi Prabaningtyas

Abstract. Wadi is a sort of fermented fish product from Dayak tribe in Central Kalimantan. Wadi is made with the addition of lumu, sugar, and salt, and fermented for 7-10 x 24 hours. During the fermentation process, there are microflora from fish, and microflora from lumu that play a role in fermentation process. Some species of bacteria that play a role in the wadi fermentation process are lipolytic bacteria and Lactic Acid Bacteria (LAB). This research aims to: (1) identify the species of lipolytic bacteria and LAB that present in the wadi, (2) determine the lipid hydrolysis index and lactic acid clearance zone index of lipolytic bacteria and LAB that present in the wadi, and (3) determine the species of lipolytic bacteria and LAB which have highest ability to hydrolyze lipid and have the highest ability to produce lactic acid based on lipid hydrolysis index and lactic acid clearance zone index. The results showed that, (1) there are four species of lipolytic bacteria and LAB present in wadi: Lactobacillus coryniformis, Lactobacillus casei, Nitrococcus mobilis and Streptococcus lactis; (2) the four species of bacteria have  different lipid hydrolysis index and lactic acid clearance zone index which are Lactobacillus coryniformis has a lipid hydrolysis index of 1.63 and lactic acid clearance zone index of 3.31; Lactobacillus casei has index of 1.94 and 3.96; Streptococcus lactis has index of 1.51 and 1.54 and Nitrococcus mobilis has index of 0.98 and 1.52; (3) Lactobacillus casei is a species of lipolytic bacteria and LAB which has the highest ability to hydrolyze lipid and to produce the highest lactic acid based on the lipid hydrolysis index and lactic acid clearance zone index, which are 1.94 and 3.96. Keywords: lipolitic bacteria, LAB, lipid hydrolysis index, lactic acid clearance zone, wadi.

Foods ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2529
Author(s):  
Cuicui Jiang ◽  
Mengyang Liu ◽  
Xu Yan ◽  
Ruiqi Bao ◽  
Aoxue Liu ◽  
...  

This work investigated the effect of lipase addition on a Chinese traditional fermented fish product, Suanzhayu. The accumulation of lactic acid and the decrease of pH during the fermentation were mainly caused by the metabolism of Lactobacillus. The addition of lipase had little effect on pH and the bacterial community structure but promoted the growth of Proteus. The addition of lipase promotes the formation of volatile compounds, especially aldehydes and esters. The formation of volatile compounds is mainly divided into three stages, and lipase had accelerated the fermentation process. Lactobacillus, Enterococcus and Proteus played an important role not only in inhibition of the growth of Escherichia-Shigella, but also in the formation of flavor. This study provides a rapid fermentation method for the Suanzhayu process.


2015 ◽  
Vol 3 (3) ◽  
pp. 219-223
Author(s):  
Nor Mahyudin ◽  
Wan Ibadullah ◽  
Amar Saadin

Pekasam is one of Malaysia s famous fermented product. Pekasam fish is usually made from freshwater fish with ground roasted fragrant rice as the main ingredient as the fermentation substrate. Fermented food, especially from fish or seafood requires lactic acid bacteria such as Lactobacillus spp. to aid the fermentation process. Samples were fermented for 30 days based on natural fermentation of pekasam. Protein has a significant effect on the taste, flavor, color and shelf life of the pekasam fish. The objective of this study is to evaluate the effect of protein content on selected fish in relation to the production of lactic acid bacteria. It showed that the increment of Lactobacillus spp. associated with the higher amount of protein in the fish during the fermentation process. Patin fish showed the highest protein content (27.5%) with the highest increment in Lactobacillus spp. This suggests possible use of Patin fish as a potential source to improve the overall quality of fermented fish product.


2020 ◽  
Vol 22 (1) ◽  
Author(s):  
Dyah Koesoemawardani ◽  
LULU ULYA AFIFAH ◽  
NOVITA HERDIANA ◽  
A.S. SUHARYONO ◽  
ESA GHANIM FADHALLAH ◽  
...  

Abstract. Koesoemawardani D. Afifah LU, Herdiana N, Suharyo AS, Fadhallah EG, Ali M. 2021. Microbiological, physical, and chemical properties of joruk (fermented fish product) with different levels of salt concentration. Biodiversitas 22: 132-136. Joruk is a fermented fish product originated in Ogan Komering Ulu Timur, South Sumatra, Indonesia. The aim of this study was to determine the effect of salt on the microbiological, physical and chemical properties of joruk. This research was arranged in a Randomized Complete Block Design (RCBD), with treatment of salt concentrations at 5%, 10%, 15%, 20%, 25%, and 30% (w/w). The follow-up test used the Least Significance Difference (LSD) at 5%. The result of this study showed that the addition of 10% salt produced the best joruk with the best microbiological and chemical properties as follows: total LAB of 8.75 log cfu/g, total microbes of 13.25 log cfu/g, and total mold of 4.27 log cfu/g, pH of 5.85, total lactic acid of 2.97%, Total Volatile Base (TVB) of 153.05 mgN /100g, and water content of 59.33%. Based on this study, it is concluded that the addition of salt at different concentrations significantly affects the pH, total lactic acid, total lactic acid bacteria (LAB), and water content of joruk.


2015 ◽  
Vol 16 (2) ◽  
pp. 93 ◽  
Author(s):  
Helen Joan Lawalata ◽  
Langkah Sembiring ◽  
Endang Sutriswati Rahayu

Twenty seven strains of lactic acid bacteria (LAB) were isolated from bakasang, Indonesian traditionalfermented fsh product. In general, LAB have inhibitory activity againts pathogenic bacteria and spoilagebacteria. Screening for antimicrobia activity of isolates were performed with well-diffusion method. Oneisolate that was designed as Pediococcus BksC24 was the strongest against bacteria pathogenic and spoilagebacteria. This strain was further identifed by 16S rRNA gen sequence comparison. Isolates LAB producingantimicrobial agents from bakasang were identifed as Pediococcus acidilactici.


2012 ◽  
Vol 7 (1) ◽  
pp. 50 ◽  
Author(s):  
Dida Hani Rahman ◽  
Ikeu Tanziha ◽  
Sri Usmiati

Fermented milk is a healthy product that has many benefits especially for human digestive tract. Manufacturing of probiotic fermented milk products as a functional food with a viable long shelf life needs to be developed. The purpose of this study was to formulate a dried fermented milk product using probiotic bacterias. The experimental design study was a complete random design with 4 treatments using different lactic acid bacteria (LAB): A1 (Streptococcus lactis: 0.5%); A2 (Streptococcus lactis: 0.25% and Lactobacillus casei: 0.25%); A3 (Streptococcus lactis: 0.25%, Lactobacillus bulgaricus: 0.125%, Streptococcus thermophiles: 0.125%); and A4 (Streptococcus lactis: 0.25% and Bifidobacterium longum: 0.25%). The highest level of hardness was A2 product and the highest level of tenderness is A1 product. Results of proximate analysis showed that dried fermented milk products had high levels of the protein, calcium, and phosphorus. Microbiological test results showed that the amount of lactic acid bacteria (BAL) in dried fermented milk products were eligible based on CODEX: 243 (2003). Statictical analysis using ANOVA in the hedonic quality test showed that the treatments were significantly different (p 0.05) on the attributes of color, aroma, hardness, and flavor except texture.<br /><br /><br />


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