Ginger As The Natural Source Of a -Terpineol Which Can Scavenge The Free Radicals Through Thermal And Photo Reactions.

[摘要] Ginger (Zingiber officinale) is the oldest plant which has a high fame due to its therapeutic scope fromcenturies. α-Terpineol extracted from Zingiber officinaleand has been subjected to extensive research.Otherwise, α-terpineol was examined for antioxidant activity through photo-epoxidation reaction withhydrogen peroxide underirradiationof a sodium lamp and thermal-epoxidation reaction with m- chloroperoxybenzoic acid to obtain 1,3,3-trimethyl-2-oxabicyclo[2.2.2]octan-7-ol in different yield. Whereas,Photooxygenation reaction was carried out in the presence of tetraphenylporphyrin orchlorophyll to give amixture of two isomeric hydroperoxides, 2-(3-hydroperoxy-4-methylene cyclohexyl)propan-2-ol &2-(4- hydroperoxy-4-methylcyclohex-2-enyl)propan-2-ol. This research deduced that ginger acts as naturalantioxidant. It can be used to give α-Terpineol which can act as natural antioxidant and flavoring agent. It canbe considered an active therapy for humans.

[学科分类] 工程和技术（综合）

[关键词] α-Terpineol;photochemical epoxidation;photosensitization;hydroperoxides;scavenging agent.