摘要
利用微生物平板分离方法,从花生渣土、椰汁土中分离、筛选得到3株产红色素菌株。光学鉴定发现菌体呈现椭球形,大小约为(2.5～5.0)μm×(5.5～8.0)μm;无性繁殖为出芽生殖。根据菌体形态特征、群体形态特征和生理生化反应,3株菌株归属于红酵母属(Rhodotorula),命名为红酵母FS-1(Rhodotorula sp.FS-1)。依据OD值法、DCW法测得红酵母FS-1的典型生长曲线为:延滞期,0～8h;对数期,8～24h;稳定期,24～34h;衰亡期为34h后。红酵母FS-1能够较好地利用豆芽汁蔗糖培养基作为其发酵基础培养基产生红色色素。
Three prouduced red pigment strains were scaned by using the microorganism plate pure isolation technique from peanut dregs pollution soil,peanut oil dregs pollution soil and coconut milk pollution soil.The three isolated strains belonged to Rhodotorular by morphological feature and physiology and biochemistry characteristics,it was called Rhodotorula sp.FS-1.Rhodotorula sp.FS-1 appeared to elliptocytosis,was（2.5～5.0）μm×（5.5～8.0）μm.Rhodotorula sp.FS-1 asexual reproduction was budding.By determining turbidimetry（OD）and dry cell weight（DCW）,Rhodotorula sp.FS-1 growth curve was divided into four growth phase,respectively was lag phase 0～8h,exponential phase 8～24h,stationary phase 24～34h,death phase or decline phase behind 34h.The fermentation fountation medium of Rhodotorula sp.FS-1 for producing red pigment was bean sprouts medium with sucrose.
出处
《食品工业科技》
CAS
CSCD
北大核心
2011年第9期227-229,232,共4页
Science and Technology of Food Industry
关键词
酵母菌
红色色素
基础培养基
yeast
red pigment
fermentation fountation medium
