黑曲霉果胶酶高活性菌株的诱变选育及对苹果汁澄清的研究.pdfVIP

16 2 ( ) V o l. 16 N o . 2 200 6 10 Jo ur nal of Lo ng do ng U niver sity ( Nat ur al Science Edit ion) O ct . 200 6 黑曲霉果胶酶高活性菌株的 诱变选育及对苹果汁澄清的研究 * 1 2 1 1 1 杨建霞 王百姓 王军军 王春江 姬二学 ( 1. ; 2 . 745000) : 以黑曲霉为出发菌株 经紫外线诱变处理 获得 一株具有稳定遗传性的果胶酶 活性菌株 在摇瓶培养基中培养后产生果胶酶 经粗提后 研究了其对苹果汁的澄清效果 : 黑曲霉; 果胶酶; 苹果汁; 紫外诱变; 澄清效果 : Q 814 : A : 019- 1127( 2006) 02- 0047- 03 Mutation breeding of high pectinase activity strains from Aspergillus Niger and the study of the filter of apple juice 1 2 1 1 1 Y A N G Jian- x ia WA N G Bai- xing WA N G Jun- jun WA N G Chun - jiang JI Er- x ue ( 1. Dep artment of L if e S cience; 2. Dep artment of H orticulture and Forestry S cience, Longdong University , Qingy ang 745000, Gansu, C ina) Abstr act: A sp erg illus N iger w as used as t he first generat ion st rain and m ut at ed by ult raviolet. T hen a g enet ic stabilit y and high Pect inase act iv ity str ain w as obtained . Af t er cult ivat io n in the in sh aking medium w e o bt ained p ect inase w hose apple ju ice f ilt er eff ect w as t hen st udied af t er ex t ract ion. K ey words : A sp er gillu s N ig er; Pect inase; apple juice; Ult ra- V io let mut at ion; ef f ect of f ilt ering FA O 2004 90% [ 1] 6192 2216 35. 8% 10 * : 2005- 12 - 31 : ( 1971 )