集美大学学报:自然科学版
集美大學學報:自然科學版
집미대학학보:자연과학판
Journal of Jimei University(Natural Science)
2012年
1期
13-19
,共7页
钟婵%江韬玲%翁武银%蔡秋凤%翁凌%曹敏杰
鐘嬋%江韜玲%翁武銀%蔡鞦鳳%翁凌%曹敏傑
종선%강도령%옹무은%채추봉%옹릉%조민걸
激肽原%组织蛋白酶%猪血%白鲢鱼
激肽原%組織蛋白酶%豬血%白鰱魚
격태원%조직단백매%저혈%백련어
kininogen%cathepsin%pig plasma%silver carp
以猪血为原材料,通过硫酸铵盐析和柱层析等方法,分离纯化出2种半胱氨酸蛋白抑制剂激肽原(kininogen).激肽原Ⅰ的得率为0.7%,纯化倍数为613.7;激肽原Ⅱ的得率为24.1%,纯化倍数为295.7.SDS—PAGE结果表明,激肽原Ⅰ和激肽原Ⅱ的分子质量分别为58ku和116ku.激肽原Ⅰ和激肽原Ⅱ对白鲢鱼(Hypophthalmichthys molitrix )鱼浆中肌原纤维蛋白降解都有一定的抑制作用,当激肽原Ⅱ添加量为鱼浆质量的0.03%时,可以使鱼糜凝胶强度提高24%.因此,激肽原可作为添加剂有效提高鱼糜制品的凝胶强度.
以豬血為原材料,通過硫痠銨鹽析和柱層析等方法,分離純化齣2種半胱氨痠蛋白抑製劑激肽原(kininogen).激肽原Ⅰ的得率為0.7%,純化倍數為613.7;激肽原Ⅱ的得率為24.1%,純化倍數為295.7.SDS—PAGE結果錶明,激肽原Ⅰ和激肽原Ⅱ的分子質量分彆為58ku和116ku.激肽原Ⅰ和激肽原Ⅱ對白鰱魚(Hypophthalmichthys molitrix )魚漿中肌原纖維蛋白降解都有一定的抑製作用,噹激肽原Ⅱ添加量為魚漿質量的0.03%時,可以使魚糜凝膠彊度提高24%.因此,激肽原可作為添加劑有效提高魚糜製品的凝膠彊度.
이저혈위원재료,통과류산안염석화주층석등방법,분리순화출2충반광안산단백억제제격태원(kininogen).격태원Ⅰ적득솔위0.7%,순화배수위613.7;격태원Ⅱ적득솔위24.1%,순화배수위295.7.SDS—PAGE결과표명,격태원Ⅰ화격태원Ⅱ적분자질량분별위58ku화116ku.격태원Ⅰ화격태원Ⅱ대백련어(Hypophthalmichthys molitrix )어장중기원섬유단백강해도유일정적억제작용,당격태원Ⅱ첨가량위어장질량적0.03%시,가이사어미응효강도제고24%.인차,격태원가작위첨가제유효제고어미제품적응효강도.
Two types of cysteine proteinase inhibitor (kininogen) were purified to homogeneity from pig plasma by ammonium sulfate fractionation and column chromatographies. Experimental results showed that the yield of kininogen I and II was 0. 7 % and 24. 1%, and the purification folds were 613.7 and 295.7 respec- tively. The result of SDS-PAGE indicated that the molecular mass of kininogen I was 58 ku and kininogen II was 116 ku. The purified kininogen I and II had an inhibiting effect ondegradation of myofibiUar proteins, especially on the myosin heavy chain. When the addition of kininogen H reached 0. 03 % of minced fish meat, the gel strength was enhanced by 24 %. In conclusion, the gel strength of fish surimi could be increased significantly by addition of kininogens.