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CAS号94293-57-9 menthone-8-thio...

S-[1-甲基-1-(4-甲基-2-氧代环己基)乙基]硫代乙酸酯置于passiflora Edulis Wall-Bound Hydrolase体系中,化学反应生成 8-巯基马来酮
参考文献:Determination And Isolation Of A Thioesterase From Passion Fruit (Passiflora Edulis Sims) That Hydrolyzes Volatile Thioesters
标题:Determination And Isolation Of A Thioesterase From Passion Fruit (Passiflora Edulis Sims) That Hydrolyzes Volatile Thioesters
摘要:Volatile Organosulfur Compounds (Voscs) Are High Impact Aroma Chemicals Characteristic Of Tropical Fruits Which Are Active As Both Free Thiols And The Respective Thioesters. Using A Simple And Sensitive Colorimetric Enzyme Assay,A Thioesterase Activity Toward Voscs Has Been Identified In Ripening Purple Passion Fruit (Passiflora Edulis Sims). The Assay Was Based On Determining The Release Of Free Thiols From 2-Methyl-3-Furanthiol Acetate Using Ellman'S Reagent. The Major Thioesterase In The Fruit Was Found To Be A Wall-Bound Protein In The Mesocarp. The Extracted Enzyme Activity Was Purified 150-Fold And Shown To Be Associated With A 43 Kda Monomeric Serine Hydrolase Which Was Selectively Labeled With A Fluorophosphonate Suicide Probe. Ms-Ms Sequencing Identified The Thioesterase As A Class 13 Glycoside Hydrolase,Most Similar To Pectin Acetylesterase,An Enzyme Involved In Cell Wall Modifications In The Peel Of A Number Of Fruit. Our Results Suggest That Cell Wall Hydrolases In Tropical Fruit May Have Additional Useful Roles In Biotransforming Voscs.
DOI:10.1021/jf800793Q