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柑橘皮渣废物利用发酵生产单细胞蛋白饲料
引用本文:朱理, 卢艳花. 柑橘皮渣废物利用发酵生产单细胞蛋白饲料[J]. 食品工业科技, 2013, (22): 131-134. DOI: 10.13386/j.issn1002-0306.2013.22.059
作者姓名:朱理  卢艳花
作者单位:1.华东理工大学生物反应器工程国家重点实验室
摘    要:传统柑橘果实加工后剩下的大量柑橘皮往往被随意丢弃,对环境造成污染的同时也造成浪费。利用其中的纤维素及果胶类物质可以提供碳源生产单细胞蛋白,并提高其中关键氨基酸(苏氨酸、甲硫氨酸、赖氨酸)的产量,以及促进单细胞蛋白在作为饲料时的吸收效率。经单因素实验可使关键氨基酸的总产量最大:苏氨酸、甲硫氨酸、赖氨酸分别为2.03×10-3、3.58、1.49×10-2g/L,共3.60g/L,占总氨基酸14.77%,优化后的培养基为60g/L柑橘皮渣、21g/L尿素,接种量为20%(V/V)的混菌(黑曲霉∶啤酒酵母=1∶1),最优发酵时间为5d。 

关 键 词:柑橘皮渣  单细胞蛋白  氨基酸
收稿时间:2013-05-09

Production of single cell protein using waste citrus peel
ZHU Li, LU Yan-hua. Production of single cell protein using waste citrus peel[J]. Science and Technology of Food Industry, 2013, (22): 131-134. DOI: 10.13386/j.issn1002-0306.2013.22.059
Authors:ZHU Li  LU Yan-hua
Affiliation:1.State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology
Abstract:The rest in the traditional citrus fruit processing a large number of citrus peel is often thrown away, not only polluting the environment but also wasteful.Using the cellulose and pectin in citrus peel as fermentation substrate to produce Single Cell Protein, in order to promote key amino acids (threonine, methionine, lysine) yield and absorption efficiency, was very meaningful. After single factor study on product, threonine, methionine, lysine was 2.03×10-3, 3.58, 1.49×10-2g/L respectively, and the total key amino acids yields account for 14.77%of total amino acids, the optimized culture was 60g/L citrus peel, 21g/L urea, inoculum size of 20% (V/V) of the mixed bacteria (Aspergillus niger∶Saccharomyces cerevisiae=1∶1) , the optimal fermentation time was 5 days.
Keywords:citrus peel  single cell protein  amino acids
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