000 03246cam a2200349 a 4500
003 EG-GiCUC
005 20250223031432.0
008 160229s2015 ua dho f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.07.04.M.Sc.2015.Sh.B
100 0 _aShaimaa Gamal Sayed Abdelsalam
245 1 0 _aBiochemical studies on peppers as specific foodstuffs /
_cShaimaa Gamal Sayed Abdel Salam ; Supervised Emam Abdelmobdy Abdelrahim , Mohamed Magdy Rashed , Mahmoud Abdallah Mohamed Saleh
246 1 5 _aدراسات كيميائية حيوية على الفلفل كأحد الأغذية الخاصة
260 _aCairo :
_bShaimaa Gamal Sayed Abdelsalam ,
_c2015
300 _a147 P. :
_bcharts , facsimiles , photographs ;
_c25cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Agriculture - Department of Agricultural Biochemistry
520 _aIn the current study, two cultivars of pepper fruits (sweet fruits of Capsicum annuum and hot chilli fruits of Capsicum frutescens) at two maturity stages (green and red) were used to determine the antioxidant, antibacterial and anticancer activities of their ethanolic and aqueous extracts in both fresh and heat-treated forms (dried and boiled). Proximate analyses of the tested samples were determined, and the resulted data showed that ash, crude protein, crude fat and total carbohydrate increased after drying treatment but they were declined as a result of boiling treatment except crude fat and total carbohydrate. Total phenolic content, total flavonoid and antioxidant activities were also evaluated in fresh pepper. These parameters increased under the effect of both heat processes and the ethanolic extracts had high contents compared to aqueous extracts. Twenty six phenolic and aromatic compounds, twelve flavonoid compounds and eleven organic acids were detected by using of HPLC fractionation. Vitamin C, Ý-carotene, vitamin E and capsaicin were also estimated by HPLC and the obtained data showed that all of those components were lowered by both heat treatments. The antibacterial activity of all extracts (ethanolic and aqueous) and capsaicin standard was also tested against both Gram-positive and Gram-negative pathogenic bacteria. Only, ethanolic extracts partially inhibited all of the tested organisms except, Bacillus cereus which was completely inhibited by both ethanolic and aqueous extracts. Finally, the potential anticancer activity of aqueous extracts of dried pepper samples and capsaicin was tested against prostate (PC-3) and breast (MCF-7) carcinoma cell lines in-vitro. The results showed that sweet peppers had a higher anticancer activity against PC- 3, in contrast, hot peppers had a higher cytotoxicity against MCF-7
530 _aIssued also as CD
653 4 _aCapsicum
653 4 _aHot pepper
653 4 _aSweet pepper
700 0 _aEmam Abdelmobdy Abdelrahim ,
_eSupervisor
700 0 _aMahmoud Abdallah Mohamed Saleh ,
_eSupervisor
700 0 _aMohamed Magdy Rashed ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aEnas
_eCataloger
905 _aNazla
_eRevisor
942 _2ddc
_cTH
999 _c55242
_d55242