南京林业大学学报(自然科学版)
南京林業大學學報(自然科學版)
남경임업대학학보(자연과학판)
JOURNAL OF NANJING FORESTRY UNIVERSITY(NATURAL SCIENCE EDITION)
2014年
z1期
105-110
,共6页
施婷婷%杨秀莲%赵林果%王良桂
施婷婷%楊秀蓮%趙林果%王良桂
시정정%양수련%조림과%왕량계
桂花%精油%保存方法%香气成分
桂花%精油%保存方法%香氣成分
계화%정유%보존방법%향기성분
Osmanthus fragrans%essential oils%storage method%fragrant components
通过水蒸气蒸馏法分别对冷冻、氯化钠、柠檬酸及自然干燥保存的桂花进行精油提取,并采用 GC-MS 对所得精油的有效成分进行分析,比较不同保存方法处理及保存30、60和90 d后桂花的精油得率及香气成分的差别。结果表明:冷冻保存、氯化钠保存及柠檬酸保存是较好桂花的保存方法,自然干燥保存法不可取;氯化钠、柠檬酸保存桂花较合适的保存时间为60 d。
通過水蒸氣蒸餾法分彆對冷凍、氯化鈉、檸檬痠及自然榦燥保存的桂花進行精油提取,併採用 GC-MS 對所得精油的有效成分進行分析,比較不同保存方法處理及保存30、60和90 d後桂花的精油得率及香氣成分的差彆。結果錶明:冷凍保存、氯化鈉保存及檸檬痠保存是較好桂花的保存方法,自然榦燥保存法不可取;氯化鈉、檸檬痠保存桂花較閤適的保存時間為60 d。
통과수증기증류법분별대냉동、록화납、저몽산급자연간조보존적계화진행정유제취,병채용 GC-MS 대소득정유적유효성분진행분석,비교불동보존방법처리급보존30、60화90 d후계화적정유득솔급향기성분적차별。결과표명:냉동보존、록화납보존급저몽산보존시교호계화적보존방법,자연간조보존법불가취;록화납、저몽산보존계화교합괄적보존시간위60 d。
The influence of the storage method of Osmanthus fragrans, which were kept under frozen, citric acid pre-servative, NaCl preservative and dryness conditions,respectively,on the quality of essential oils were analyzed by GC-MS. The results show that the yield and the fragrant components of essential oils from the frozen, citric acid preservative and NaCl preservative flower were very similar to those from the fresh flower. As the citric acid preservative, NaCl pre-servative time increased, their main fragrant components of O. fragrans kept unchanged, but their contents showed a nonlinear decreasing trend which accelerated significantly after two months of cryopreservation, suggesting that O. fra-grans should not be stored for longer than 60 d under citric acid or NaCl preservative conditions.