食品科学
食品科學
식품과학
FOOD SCIENCE
2009年
23期
246-251
,共6页
任向楠%张红城%董捷%李鸿染%赵亮亮
任嚮楠%張紅城%董捷%李鴻染%趙亮亮
임향남%장홍성%동첩%리홍염%조량량
油菜花粉%木瓜蛋白酶%通透性
油菜花粉%木瓜蛋白酶%通透性
유채화분%목과단백매%통투성
rape pollen%papain%permeability
用木瓜蛋白酶酶解油菜花粉,考察温度和pH值两个因素的影响.从蛋白分散指数、蛋白溶解指数、可溶性糖含量、显微镜镜榆、粒度分析5个方面,综合评价花粉萌发孔通透性的改善情况.结果表明:油菜花粉经木瓜蛋白酶酶解后,蛋白分散指数、溶解指数、可溶性糖含量与空白相比均显著增加(P<0.05);最佳酶解条件是温度60℃、pH6.0;经粒度软件分析,发现此条件酶解后1μm以下的碎片比空白增加了38.24%,1~2μm的碎片增加了 19.08%;2~4μm的碎片比空白减少了30.64%,4~6μm的碎片减少了75.6%,6~8μm的碎片减少了78.95%,8~10μm的碎片减少了51.02%,10~12μm的碎片减少了69.7%,花粉粒径趋于减小;同时花粉粒的孔洞面积增加了21.00%,这充分说明用木瓜蛋白酶酶解油菜花粉,对油菜花粉细胞壁通透性有明显改善,对营养成分的溶出有一定的促进作用.
用木瓜蛋白酶酶解油菜花粉,攷察溫度和pH值兩箇因素的影響.從蛋白分散指數、蛋白溶解指數、可溶性糖含量、顯微鏡鏡榆、粒度分析5箇方麵,綜閤評價花粉萌髮孔通透性的改善情況.結果錶明:油菜花粉經木瓜蛋白酶酶解後,蛋白分散指數、溶解指數、可溶性糖含量與空白相比均顯著增加(P<0.05);最佳酶解條件是溫度60℃、pH6.0;經粒度軟件分析,髮現此條件酶解後1μm以下的碎片比空白增加瞭38.24%,1~2μm的碎片增加瞭 19.08%;2~4μm的碎片比空白減少瞭30.64%,4~6μm的碎片減少瞭75.6%,6~8μm的碎片減少瞭78.95%,8~10μm的碎片減少瞭51.02%,10~12μm的碎片減少瞭69.7%,花粉粒徑趨于減小;同時花粉粒的孔洞麵積增加瞭21.00%,這充分說明用木瓜蛋白酶酶解油菜花粉,對油菜花粉細胞壁通透性有明顯改善,對營養成分的溶齣有一定的促進作用.
용목과단백매매해유채화분,고찰온도화pH치량개인소적영향.종단백분산지수、단백용해지수、가용성당함량、현미경경유、립도분석5개방면,종합평개화분맹발공통투성적개선정황.결과표명:유채화분경목과단백매매해후,단백분산지수、용해지수、가용성당함량여공백상비균현저증가(P<0.05);최가매해조건시온도60℃、pH6.0;경립도연건분석,발현차조건매해후1μm이하적쇄편비공백증가료38.24%,1~2μm적쇄편증가료 19.08%;2~4μm적쇄편비공백감소료30.64%,4~6μm적쇄편감소료75.6%,6~8μm적쇄편감소료78.95%,8~10μm적쇄편감소료51.02%,10~12μm적쇄편감소료69.7%,화분립경추우감소;동시화분립적공동면적증가료21.00%,저충분설명용목과단백매매해유채화분,대유채화분세포벽통투성유명현개선,대영양성분적용출유일정적촉진작용.
Rape pollen was treated with papain in different temperature and pH conditions. Permeability of pollen pores was comprehensively evaluated by several parameters such as protein dispersion index, protein solubility index, soluble sugar content, microscopic examination and granule size analysis. Results indicated that protein solubility index, protein dispersion index, and soluble sugar content exhibited a significant increase after enzymatic hydrolysis with papain (P<0.05). The optimal conditions for hydrolysis were 60 ℃ of temperature and pH 6.0. Based on granule size analysis, fragments below 1 μm and ranged in 1 - 2μm increased by 38.24% and 19.08%, respectively. In contrast, fragments ranged in2 - 4,4 - 6,6 - 8, 8 - 10 μm and 10 - 12μ m decreased by 30.64%, 75.6%, 78.95%, 51.02% and 69.7%, respectively. Due to the declined size of pollen,pore area of pollen also increased by 21.00% through enzymatic hydrolysis. Therefore, the permeability of pollen is enhanced through papain hydrolysis, which will be helpful for dissolution of nutritional ingredients.