Study On The Flavor Of Hainan Jackfruit

Jackfruit is the typical tropical fruits.jackfruit is very high nutritional value.Jackfruit is a traditional fruits in Southeast Asia countries,and the consumption is great.At present,As early as thousands of years ago,China began planting jackfruit,Hainan,Guangdong and other places mainly cultivated,rich country's resources,but the tropical or subtropical climate was suitable for the growth of jackfruit,which most large scale cultivation of Hainan.Due to different taste preferences of consumers,combined with the high cost of analysis,our current flavor of pineapple and less relevant research,but to adapt to the ever-changing gradually strengthen people's diet,as well as international exchanges,the Chinese goverrment began increasing emphasis on tropical characteristics of fruit development work.Therefore,to reduce blindness research jackfruit,jackfruit accelerate understanding of the characteristics of domestic understand.This article is for Hainan planted jackfruit special aroma as the main object of study,simultaneous distillation and extraction solid phase micro-extraction method to obtain two kinds of volatile aroma and collected by GC-MS spectrum of the solution,odor identification,electronic nose and electronic tongue flavor finger:print recognition technology for rapid detection analysis Hainan pineapple flavor characteristics,the main findings are as follows:Different experimental sample preparation methods will affect the results of the analysis on the difference detection,in order to avoid this,choose a suitable sample preparation method is particularly important.The topic for the Hainan pineapple flavor a study,the optimal aroma extraction method for screening and optimization of the process,the results show:hexane as the extraction solvent,SDE reflux 3h,may be better prepared Hainan jackfruit volatile aroma components by GC-MS analysis of the solution spectrum technique identified 39 kinds of compounds;solid phase micro-extraction method to better effect,corresponding conditions detailed experimental results.By GC-MS analysis technology solution spectrum identified 66 kinds of compounds.From the identification of the type and content analysis of volatile compounds,two kinds of methods have their own advantages,solid phase micro-extraction well isolated jackfruit low boiling point,high volatility,low molecular weight volatile aroma components while distilling extraction method can better detect a higher boiling point,low volatility,high molecular weight volatile aroma;produced by Hainan jackfruit overall volatile aroma identification and data analysis,the best extraction method for the preparation of solid phase micro extraction France;two kinds of methods were detected in Hainan jackfruit identified 76 kinds of volatile aroma components.In order to clarify the main volatile aroma Hainan jackfruit evaluation and quantitative indicators,analysis of this chapter to determine the characteristics of Hainan jackfruit volatile aroma components.Using gas chromatography mass spectrometry.Olfactory discrimination descriptive analysis prepared by methods such as solid phase micro-extraction method Hainan pineapple extract volatile aroma activity.Aroma extract dilution analysis of quantitative and understand the whole Hainan jackfruit volatile aroma and flavor characteristics of the material sensory evaluation criteria,and improve the overall flavor of Hainan pineapple fla-vor substances identified to determine the strength of the sort:Butyl iso-valerate>isoamyl amyl acetate>isoamyl isovalerate>ethyl isovalerate>butyl acetate>isoamylalcohol acetate>isovalerate isobutyl>isovaleric acid ester>isoamyl alcohol.In order for the different stages of maturity Hainan volatile aroma.components to better judge jackfruit,jackfruit Hainan determine maturity period of time;electronic sensing system to replace the human sensory system combines the nose and the tongue of the five stages of jackfruit pulp aroma and taste feature identification,the results showed gradual ripening,commercial ripening period and finished the overall flavor of ripe jackfruit closer,but with the flavor of green mature and over-ripening jackfruit relatively large differences;Hainan jackfruit ripe time for 20 days its odor with banana,apple-based,taste sweet and sour mainly ignorant.