Production and characterization of levan by <i>Bacillus siamensis</i> at flask and bioreactor

Q2 Engineering

Engineering in Agriculture, Environment and Food Pub Date : 2023-01-01 DOI:10.37221/eaef.16.1_15

Pongtorn PHENGNOI, Suttinee SATTAVANICH, Chavanond CHAROENSUP, Supansa NUENGNOON, Krittiya JANTHORN, Nuttinee TEERAKULKITTIPONG, Witawat JANGIAM

引用次数: 0

Abstract

Edible film is a novel concept in the packaged food industry. It is used to extend the shelf life of food. This study aimed to compare levan production from Bacillus siamensis using a flask and bioreactor, characterize its properties, and evaluate the properties of levan alginate-based film coating by applying it on guava. The water vapor permeability (WVP) of the films and weight loss of the coated guava were measured. The results revealed that the performance of the bioreactor was similar to flask cultivation. Levan exhibited prebiotic activity and promoted the growth of Lacticaseibacillus casei. The WVP of the film comprising purified levan was 6.02 × 10-8 g m-1 s-1 Pa-1. Coated guava demonstrated reduced weight loss by up to 49.35 %.

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连体芽孢杆菌(Bacillus siamensis)生产利末酵母及特性研究在烧瓶和生物反应器

可食用薄膜是包装食品行业的一个新概念。它被用来延长食品的保质期。本研究的目的是比较在烧瓶和生物反应器中由siambacillus siamensis生产的levan，表征其性能，并评价其在番石榴上应用的levan海藻酸盐基薄膜涂层的性能。测定了薄膜的水蒸气渗透性和包覆后的失重率。结果表明，该生物反应器的性能与烧瓶培养相似。Levan具有益生元活性，能促进干酪乳杆菌的生长。该膜的WVP为6.02 × 10-8 g m-1 s-1 Pa-1。包覆番石榴可减少高达49.35%的体重减轻。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Engineering in Agriculture, Environment and Food Engineering-Industrial and Manufacturing Engineering

CiteScore

1.00

自引率

0.00%

发文量

期刊介绍： Engineering in Agriculture, Environment and Food (EAEF) is devoted to the advancement and dissemination of scientific and technical knowledge concerning agricultural machinery, tillage, terramechanics, precision farming, agricultural instrumentation, sensors, bio-robotics, systems automation, processing of agricultural products and foods, quality evaluation and food safety, waste treatment and management, environmental control, energy utilization agricultural systems engineering, bio-informatics, computer simulation, computational mechanics, farm work systems and mechanized cropping. It is an international English E-journal published and distributed by the Asian Agricultural and Biological Engineering Association (AABEA). Authors should submit the manuscript file written by MS Word through a web site. The manuscript must be approved by the author''s organization prior to submission if required. Contact the societies which you belong to, if you have any question on manuscript submission or on the Journal EAEF.