CAJ | 학술논문

对黄花菜抑制亚硝化反应的能力及其影响因素进行研究.采用比色法测定黄花菜提取物的亚硝酸盐清除率和亚硝胺抑制率.结果表明,黄仡菜抑制亚硝化反应功能成分的提取方法为:70%甲醇为提取试剂,超声波辅助提取0.5h,在该条件下,黄花菜提取物的亚硝酸盐清除率和亚硝胺抑制率分别为66.9%和54.7%.在冷藏过程中,黄花菜的亚硝酸盐清除能力和亚硝胺抑制能力变化不大;四个品种中(孟子花、白花、细叶和倒杆),倒杆的亚硝酸盐清除能力和亚硝胺抑制能力最高,而白花最差.蒸汽烫漂比水浴烫漂能更好的保持黄花菜的抑制亚硝化反应的能力,但均比未烫漂的低.冷冻干燥能更好的保持黄花菜的抗亚硝化活性,日晒干燥次之,热风干燥最差.由此可见,黄花菜提取物对亚硝化反应具有一定的抑制能力,品种不同、烫漂、干燥、冷藏处理均会影响该能力.
대황화채억제아초화반응적능력급기영향인소진행연구.채용비색법측정황화채제취물적아초산염청제솔화아초알억제솔.결과표명,황흘채억제아초화반응공능성분적제취방법위:70%갑순위제취시제,초성파보조제취0.5h,재해조건하,황화채제취물적아초산염청제솔화아초알억제솔분별위66.9%화54.7%.재랭장과정중,황화채적아초산염청제능력화아초알억제능력변화불대;사개품충중(맹자화、백화、세협화도간),도간적아초산염청제능력화아초알억제능력최고,이백화최차.증기탕표비수욕탕표능경호적보지황화채적억제아초화반응적능력,단균비미탕표적저.냉동간조능경호적보지황화채적항아초화활성,일쇄간조차지,열풍간조최차.유차가견,황화채제취물대아초화반응구유일정적억제능력,품충불동、탕표、간조、랭장처리균회영향해능력.
Fresh daylily flowers were processed into powder by the following procedures of blanching, drying and comminution, and the powder was extracted with different solvents. The suppression effects of daylily flower extracts on nitrosation were evaluated in terms of the nitrite scavenging activity and nitrosamine synthesis inhibiting activity determined by spectrophotometric method. The 70% methanol extract of daytily flower obtained by the water bath extraction for 0.5 h in an ultrasonic filed had high nitrite scavenging activity and nitrosamine synthesis inhibiting activity, reaching 66.9% and 54.7%, respectively. The nitrite scavenging activity and nitrosamine synthesis inhibiting activity of daylily flower varied slightly during fridge storage. Among four cultivars (Mengzihua, Baihua, Xiye and Daogan) of daylily flowers, Daogan had the highest nitrite scavenging activity and nitrosamine synthesis inhibiting activity and Xiye the lowest. Stream blanching treatment could maintain higher nitrosamine synthesis inhibiting activity than boiling water blanching treatment, although daylily flowers treated by them both had lower nitrosamine synthesis inhibiting activity than unblanched ones. A highest nitrosamine synthesis inhibiting activity was found in freeze-dried daylily flowers in comparison with sunlight-dried ones followed by hot air-dried ones. In general daylily flowers possess some nitrosamine synthesis inkihiting activity which is affected by cultivars and blanching, drying and cool storage treatments.