赤红球菌提取物的制备及其化学成分分析
2023-07-13程贤陈洲琴张祝兰杨煌建严凌斌王德森连云阳
程贤 陈洲琴 张祝兰 杨煌建 严凌斌 王德森 连云阳



摘 要:为建立赤红球菌提取物制备新工艺,以赤红球菌Rhodococcus ruber FIM12为试验材料,通过单因素试验优化赤红球菌提取物制备条件,并进一步分析其类脂化合物、总糖、氨基酸等主要成分。结果表明:赤红球菌提取物制备收率为100 g湿细胞可制备3.97 g赤红球菌提取物,其类脂化合物含量为17.48%,多糖含量44.1%,含有1种氨糖(细胞壁特征氨基酸)和18种氨基酸(其中包含8种人体必需氨基酸),种类较为丰富。研究结果可为深入开发利用赤红球菌提取物可供参考。
关键词:赤红球菌;制备;多糖;氨基酸
中图分类号:Q 936 文献标志码:A 文章编号:0253-2301(2023)04-0042-06
DOI: 10.13651/j.cnki.fjnykj.2023.04.006
Preparation of Rhodococcus ruber Extract and Analysis of Its Chemical Composition
CHENG Xian, CHEN Zhou-qin, ZHANG Zhu-lan*, YANG Huang-jian,YAN Ling-bin, WANG De-sen, LIAN Yun-yang*
[Fujian Institute of Microbiology / Fujian Key Laboratory of New Drugs (Microbiology)Screening, Fuzhou, Fujian 350007, China]
Abstract: In order to establish a new process for the preparation of Rhodococcus ruber extract, by taking Rhodococcus ruber FIM-12 as the experimental material, the preparation conditions of Rhodococcus ruber extract were optimized by using the single factor test, and the main components such as lipoic acid, total polysaccharide and amino acids were further analyzed. The results showed that: the preparation yield of Rhodococcus ruber extract was as follows: 3.97 g Rhodococcus ruber extract could be prepared from 100 g wet cells, which contained 17.48% lipoic acids and 44.1% polysaccharides. It contained 1 kind of glucosamine (cell wall characteristic amino acid) and 18 kinds of amino acids (including 8 kinds of essential amino acids), with relatively rich species. The research results could provide reference for the further development and utilization of Rhodococcus ruber extract.
Key words: Rhodococcus ruber; Preparation; Polysaccharide; Amino acid
目前,BCG-CWS(卡介苗細胞壁骨架)[1]、N-CWS(红色诺卡氏菌细胞壁骨架)[2]等微生物菌体提取物已被研究表明具有良好的免疫调节功能,其多糖成分具有增强脾淋巴细胞繁殖的生物活性,已获批用于临床。未见赤红球菌提取物研究的相关报道,但赤红球菌与诺卡氏菌细胞壁成分类似,且生长快、易培养,可规模化工业生产,具有很高的研究价值。探索赤红球菌提取物制备新工艺有助于提高提取物收率和产品主要质量控制指标,筛选低毒性溶媒降低生产污染等[3-4]。因此开展赤红球菌提取物的制备工艺研究具有重要意义。
研究发现稀有放线菌细胞壁含有特异性的寡糖、肽聚糖、特殊氨基酸等,具有人体的免疫增强作用[5-6],前期初步试验表明赤红球菌菌体提取物对巨噬细胞等有调节功能,能够增强机体免疫能力,有巨大的发展潜力[7]。……
