Indonesian Food and Nutrition Progress
Vol 14, No 1 (2017)

Binding of Aflatoxin B1 to Lactobacillus paracasei SNP-2 and Stability of Bacteria-AFB1 Complex

Rohula Utami (Department of Food Science and Technology, Faculty of Agriculture, Universitas Sebelas Maret, Surakarta, Indonesia)
Tyas Utami (Departement of Food and Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, 5528, Indonesia)
Suparmo Suparmo (Departement of Food and Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, 5528, Indonesia)
Endang Sutriswati Rahayu (Departemnt of Food and Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, 5528, Indonesia)



Article Info

Publish Date
31 Aug 2017

Abstract

The aim of this research was to study the binding ability of viable and non-viable of Lactobacillus paracasei SNP-2 to aflatoxin B1 (AFB1) in phosphate buffer saline (PBS) at pH 7.3. Bacterial cells were grown in MRS broth at 37 °C for 24 h, and then centrifuged at 1,800g[a1]  for 20 min at 10 °C to get the pellet. Pellet was suspended in PBS pH 7.3 until the cell concentration was about 1010 CFU/ml. Viable cells, the heated, and acid-killed cells were evaluated their ability to bind AFB1 in PBS pH 7.3. Stability of the L. paracasei SNP-2/AFB1 complexes was evaluated by determining the amount of the released AFB1 to the PBS following five times washing. The results showed that AFB1 binding ability to heat-and acid-kill bacteria were higher than that of by viable cells. More than 70% of bound AFB1 was released from viable bacteria after five times washing. However, the heated and acid-killed cell treatments significantly increased the complex stability of bacteria-AFB1

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Journal Info

Abbrev

ifnp

Publisher

Subject

Agriculture, Biological Sciences & Forestry

Description

Indonesian Food and Nutrition Progress, is a primarily online, a peer-reviewed journal in food technology and nutrition. All papers should focus on the novelty of the research carried out. It is published by Indonesian Association of Food Technologists in collaboration with Faculty of Agricultural ...