中国油脂
中國油脂
중국유지
CHINA OILS AND FATS
2014年
7期
17-20,21
,共5页
常明%朱晋萱%刘睿杰%朱跃进%张士康%金青哲%王兴国
常明%硃晉萱%劉睿傑%硃躍進%張士康%金青哲%王興國
상명%주진훤%류예걸%주약진%장사강%금청철%왕흥국
茶叶籽毛油%储藏%品质%稳定性
茶葉籽毛油%儲藏%品質%穩定性
다협자모유%저장%품질%은정성
crude tea see d oil%storage%quality%stability
对茶叶籽毛油进行了6个月的储藏实验,模拟工厂实际情况,探究光照、温度和密闭性对茶叶籽毛油品质的影响。结果表明:热榨茶叶籽毛油储藏稳定性较冷榨茶叶籽毛油好,储藏条件对茶叶籽毛油品质的影响大小依次为光照、温度和密闭性;储藏6个月后,茶叶籽毛油酸值、过氧化值增幅均超过100%,氧化稳定指数降幅超过60%,生育酚含量降幅为20%~50%,角鲨烯含量降幅为50%~83%,茶多酚含量降幅为25%~70%;相关性分析发现,热榨茶叶籽毛油的氧化稳定性与生育酚、茶多酚含量相关性较高,冷榨茶叶籽毛油的氧化稳定性则与角鲨烯含量相关性较高。因此,茶叶籽毛油必须避光储藏,同时维持温度稳定,低温尤佳。
對茶葉籽毛油進行瞭6箇月的儲藏實驗,模擬工廠實際情況,探究光照、溫度和密閉性對茶葉籽毛油品質的影響。結果錶明:熱榨茶葉籽毛油儲藏穩定性較冷榨茶葉籽毛油好,儲藏條件對茶葉籽毛油品質的影響大小依次為光照、溫度和密閉性;儲藏6箇月後,茶葉籽毛油痠值、過氧化值增幅均超過100%,氧化穩定指數降幅超過60%,生育酚含量降幅為20%~50%,角鯊烯含量降幅為50%~83%,茶多酚含量降幅為25%~70%;相關性分析髮現,熱榨茶葉籽毛油的氧化穩定性與生育酚、茶多酚含量相關性較高,冷榨茶葉籽毛油的氧化穩定性則與角鯊烯含量相關性較高。因此,茶葉籽毛油必鬚避光儲藏,同時維持溫度穩定,低溫尤佳。
대다협자모유진행료6개월적저장실험,모의공엄실제정황,탐구광조、온도화밀폐성대다협자모유품질적영향。결과표명:열자다협자모유저장은정성교랭자다협자모유호,저장조건대다협자모유품질적영향대소의차위광조、온도화밀폐성;저장6개월후,다협자모유산치、과양화치증폭균초과100%,양화은정지수강폭초과60%,생육분함량강폭위20%~50%,각사희함량강폭위50%~83%,다다분함량강폭위25%~70%;상관성분석발현,열자다협자모유적양화은정성여생육분、다다분함량상관성교고,랭자다협자모유적양화은정성칙여각사희함량상관성교고。인차,다협자모유필수피광저장,동시유지온도은정,저온우가。
The storage experiments of crude tea see d oil for six months were carried out in accordance with actual factory situation to study the effects of light, temperature and tightness on the quality of crude tea seed oil. The results indicated that the storage stability of crude hot-pressed tea seed oil was better than that of crude cold- pressed tea seed oil;light had the most significant effect on the quality of crude tea seed oil, followed by temperature and tightness;after storing for six months, both the acid value and perox-ide value of crude tea seed oil increased by more than 100%, oxidative stability index decreased by over 60%, tocopherol content reduced by 20% -50%, squalene content dropped by 50% -83%, and tea polyphenols content lowered by 25% -70%;besides, the oxidative stability of crude hot-pressed tea seed oil had a remarkable correlation with tocopherol and tea polyphenols contents, while the oxidative stability of crude cold-pressed tea seed oil was markedly related to squalene content. Therefore, the crude tea seed oil must be stored away from light at stable temperature, especially at low temperature.