食品与发酵科技
食品與髮酵科技
식품여발효과기
SICHUAN FOOD AND FERMENTATION
2013年
4期
70-74,80
,共6页
高效液相色谱法%二羟基丙酮%甘油
高效液相色譜法%二羥基丙酮%甘油
고효액상색보법%이간기병동%감유
HPLC%dihydroxyacetone%glycerol
应用高效液相色谱法检测发酵过程中发酵产物二羟基丙酮和底物甘油浓度。在流动相乙腈、纯净水的比例为85∶15(v∶v),流速为1mL/min,色谱柱为Hedera-NH2的条件下,用紫外检测器在271nm处检测DHA,用示差折光检测器检测甘油。高效液相色谱法检测DHA的线性范围为2.0-12.0mg/mL,相关系数(r)为0.9996,检测甘油的线性范围为0.1-1.0mg/mL,相关系数(r)为0.9998。该方法应用于二羟基丙酮发酵过程中底物和产物的检测,该方法不受培养基中不同碳源(葡萄糖、蔗糖、山梨醇、乳糖、甘油),不同氮源(蛋白胨、酵母膏、酵母粉、营养肉汤)以及菌体未完全利用的培养基成分、菌体生长过程中产生的其它代谢产物的影响,该方法具有较好的通用性。
應用高效液相色譜法檢測髮酵過程中髮酵產物二羥基丙酮和底物甘油濃度。在流動相乙腈、純淨水的比例為85∶15(v∶v),流速為1mL/min,色譜柱為Hedera-NH2的條件下,用紫外檢測器在271nm處檢測DHA,用示差摺光檢測器檢測甘油。高效液相色譜法檢測DHA的線性範圍為2.0-12.0mg/mL,相關繫數(r)為0.9996,檢測甘油的線性範圍為0.1-1.0mg/mL,相關繫數(r)為0.9998。該方法應用于二羥基丙酮髮酵過程中底物和產物的檢測,該方法不受培養基中不同碳源(葡萄糖、蔗糖、山梨醇、乳糖、甘油),不同氮源(蛋白胨、酵母膏、酵母粉、營養肉湯)以及菌體未完全利用的培養基成分、菌體生長過程中產生的其它代謝產物的影響,該方法具有較好的通用性。
응용고효액상색보법검측발효과정중발효산물이간기병동화저물감유농도。재류동상을정、순정수적비례위85∶15(v∶v),류속위1mL/min,색보주위Hedera-NH2적조건하,용자외검측기재271nm처검측DHA,용시차절광검측기검측감유。고효액상색보법검측DHA적선성범위위2.0-12.0mg/mL,상관계수(r)위0.9996,검측감유적선성범위위0.1-1.0mg/mL,상관계수(r)위0.9998。해방법응용우이간기병동발효과정중저물화산물적검측,해방법불수배양기중불동탄원(포도당、자당、산리순、유당、감유),불동담원(단백동、효모고、효모분、영양육탕)이급균체미완전이용적배양기성분、균체생장과정중산생적기타대사산물적영향,해방법구유교호적통용성。
High performance liquid chromatography (HPLC) was applied to determinate dihydroxyacetone (DHA) and glycerol in the fermentation broth respectively. The mobile phase is composed of acetonitrile-water (85∶15, V∶V). The analytes were separated on a Hedera-NH2 column with at a flow rate of 1mL/min. DHA was detected by UV detector at 271nm and glycerol was detected by refractometer. The linearity range for the determination of DHA was 2.00-12.00mg/mL with a correlation coefficient (r) of 0.9996. The linearity range for the determination of glycerol was 0.1-1.0mg/mL with a correlation coefficient (r) of 0.9998. The methods were applicable for DHA and glycerol determination in the fermentation process without interference from other constitutes in the fermentation broth.