从波兰桦树林中分离的红酵母的生物技术潜力

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS ACS Applied Bio Materials Pub Date : 2024-04-30 DOI:10.1007/s10529-024-03482-3

Anna M. Kot, Paulina Laszek, Marek Kieliszek, Katarzyna Pobiega, Stanisław Błażejak

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摘要

结果从桦树（Betula pendula）树皮、树液和春季粘液流体中分离出 24 株红色酵母。其中以粘液红酵母菌（Rhodotorula mucilaginosa）（6 株）、大肠红酵母菌（Rhodosporidiobolus colostri）（4 株）、头酵母菌（Cystrofilobasidium capitaum）（3 株）、菱形红酵母菌（Phaffia rhodozyma）（3 株）和心理红酵母菌（Cystobasidium psychroaquaticum）（3 株）为主。R. mucilaginosa CMIFS 004 的类胡萝卜素生物合成效率最高（5.04 mg L-1），而 P. rhodozyma 的两个菌株产生脂类的效率最高（5.40 和 5.33 g L-1）。R. glutinis CMIFS 103 产生的外多糖含量最高（3.75 g L-1）。11 株菌株具有脂肪分解活性，9 株具有淀粉分解活性，只有 2 株具有蛋白分解活性。没有发现生物表面活性剂。结论银桦是分离具有广泛生物技术潜力的红酵母新菌株的良好天然来源。

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Biotechnological potential of red yeast isolated from birch forests in Poland

Objectives

This study aimed to isolate red yeast from sap, bark and slime exudates collected from Polish birch forests and then assessment of their biotechnological potential.

Results

24 strains of red yeast were isolated from the bark, sap and spring slime fluxes of birch (Betula pendula). Strains belonging to Rhodotorula mucilaginosa (6), Rhodosporidiobolus colostri (4), Cystrofilobasidium capitaum (3), Phaffia rhodozyma (3) and Cystobasidium psychroaquaticum (3) were dominant. The highest efficiency of carotenoid biosynthesis (5.04 mg L⁻¹) was obtained by R. mucilaginosa CMIFS 004, while lipids were most efficiently produced by two strains of P. rhodozyma (5.40 and 5.33 g L⁻¹). The highest amount of exopolysaccharides (3.75 g L⁻¹) was produced by the R. glutinis CMIFS 103. Eleven strains showed lipolytic activity, nine amylolytic activity, and only two proteolytic activity. The presence of biosurfactants was not found. The growth of most species of pathogenic moulds was best inhibited by Rhodotorula yeasts.