000 03097cam a2200349 a 4500
003 EG-GiCUC
005 20250223032234.0
008 190331s2018 ua f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aPh.D
099 _aCai01.10.06.Ph.D.2018.Ma.I
100 0 _aMarwa Ragab Saeed Abdallah
245 1 0 _aImproving quality of pastirma using edible coatings /
_cMarwa Ragab Saeed Abdallah ; Supervised Mohamed M. T. Emara , Hussein M. Hussein , Mai A. Mohamed
246 1 5 _aتحسين جودة البسطرمة باستخدام الأغلفة الغذائية
260 _aCairo :
_bMarwa Ragab Saeed Abdallah ,
_c2018
300 _a102 P. ;
_c25cm
502 _aThesis (Ph.D.) - Cairo University - Faculty of Veterinary Medicine - Department of Food Hygiene and Control
520 _aThe main objective of the current study was to replace the traditional coat of pastirma with biodegradable edible coatings to overcome the problems e.g. cracked coat, detached coat, naked areas and mold growth that usually arise from the traditional coat and to improve the quality of processed pastirma during chilled storage. To achieve this objective, pastirma was processed and coated with traditional and different edible coating materials (chitosan, alginate, gelatin, starch, and composite). The coated pastirma was stored for 4 weeks at 5 {u00B0}C and analyzed weekly for physiochemical characteristics, microbiological, and sensory quality. The obtained results revealed that chitosan edible coating resulted in higher sensory scores, improved water barrier properties, pronounced antioxidant effect with lower shear force and noticeable reduction in microbial load (aerobic mesophilic, psychrotrophic, anaerobic, yeast and mold counts). Lower TBARS values, delayed respiration rate, reduction of weight loss, and improvement in all sensory attributes especially the color of pastirma were observed after gelatin and alginate application when compared with the traditional coating. Moreover, the addition of the lipid portion (beeswax) to starch during the preparation of coating material (composite) could improve the coating properties and overcome the problems that can arise from using starch alone. The use of starch composite resulted in a higher coating retention, a lower weight loss, improved sensory attributes, more stabilized color and a pronounced reduction of the total bacterial count (by 2 log CFU/g). It can be concluded that biodegradable edible coating materials especially chitosan and starch/beeswax composite can be used as an effective replacement to traditional coat for improving the quality of pastirma
530 _aIssued also as CD
653 4 _aCoatings
653 4 _aEdible
653 4 _aPastirma
700 0 _aHussein Mohamed Hussein ,
_eSupervisor
700 0 _aMai Atef Mohamed ,
_eSupervisor
700 0 _aMohamed Mohamed Talaat Emara ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aSamia
_eCataloger
942 _2ddc
_cTH
999 _c71122
_d71122