3888

3671

كارشناسي ارشد

علوم و صنايع غذايي

اصفهان :دانشگاه صنعتي اصفهان ،دانشكده كشاورزي

1386

چهارده، 164،[II] ص: مصور، جدول، نمودار

ص، ع به: فارسي و انگليسي

محمد شاهدي، زهرا امام جمعه

جواد كرامت، كرامت اله رضايي

8/2/87

محمد فضيلتي، علي اكبر رامين

مهندسي كشاورزي

ID3671

به فارسي و انگليسي: قابل روئيت در نسخه ديجيتال

AbstractThere is a lot of wastage of pomegranate peel in pomegranate process factories 30 60 depends of the variety According to the recent studies pomegranate peel containshigh amount of food and medical grade anti oxidant components Three popular IranianPomegranate named Sweet Ardestan Sour Ravar and Meikhosh Saveh were used in thisstudy In this research antioxidant of the wet and dried peels were extracted by eitherordinary solvents such as ethyl acetate or CO2 supercritical fluid protocol and afterquantification their phenolic profile was evaluated The amount of protein fat fiber and ash of the samples along with their color weredetermined the latter by a Hunterlab instrument Least Significant Difference LSD tests in one way completely randomized ANOVA in SAS 9 1 were used to analyze thedata In extraction with supercritical fluid the effect of five variants of temperature pressure dynamic extraction time static extraction time co solvent volume onextraction yield were examined in five different levels Taguchi statistic method wasused to optimize the conditions of extraction Results indicated that significantly extraction yield from the peel of Meikhosh Savehvariety was more than Sweet Ardestan variety P 0 05 Extraction yield from driedpeel with ethanol solvent was also more than wet peel with ethyl acetate solvent P 0 05 According to the results amount of fat total ash and fiber of Ravarpomegranate P 0 05 were more than Ardestan pomegranate peel both were more thanMeikhosh Saveh variety whereas the amount of protein in Ardestan pomegranate peelwas more than other varieties High performance Liquid Chromatography HPLC wasemployed to evaluate extracted compounds by supercritical fluid The results showedthat considerably estigmasterol estriol and testosterone or estradiol phytoestrogens havebeen extracted Investigate the effect of varieties used in extraction system withsupercritical fluid on the yield of extracted extraction from peel proved that the pressurehad the most effects on the dependant factors Temperature and co solvent volumefactors were also more effective specially on extracting phytoestrogen Besides ofphytoestrogens compounds such as tannic acids and anthocyanines were also found inSoxhlet method The distinction between quantity and the kind of anthocyanines whichwere found in pomegranate peel varieties explain the differences of their value inColorimetry tests

محمد شاهدي، زهرا امام جمعه

جواد كرامت، كرامت اله رضايي

محمد فضيلتي، علي اكبر رامين