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Evaluation of frozen meat and meat products marketed in Bab El-Louk market / Sarah Samir Abdelkader Ibrahim ; Supervised Nabil Abdelgaber Yassien , Gehan Mohamed Abdelaziz Kassem

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Sarah Samir AbdelKader Ibrahim , 2016Description: 72 P. : charts , facsimiles ; 25cmOther title:
  • تقييم اللحوم المجمدة و منتجاتها في سوق باب اللوق [Added title page title]
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  • Issued also as CD
Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Veterinary Medicine - Department of Food Hygiene and Control Summary: A total of 105 random samples of frozen meat and meat products represented by Beef burger, frozen meat, hawawshi, kofta, luncheon, minced meat and oriental Sausage (15 of each) were collected from "Bab El-Louk". The collected samples were kept in an ice box and directly transferred to laboratory under aseptic condition and examined for sensory evaluation (appearance, odour, texture, over all acceptability), deterioration criteria (pH, TVB-N, TBA), microbiological evaluation (total bacterial count, psychrotrophic count, coliforms count and total staphylococcal count, total yeast and mould count. in addition to isolation and identification of Staph. aureus, E. coli and Salmonella and histological examination. Based on sensory attributes score 56.19% of all examined samples are accepted. TVB-N ranged from 15.51{u2013}20.54 mg% with hawawshi samples showed the highest value. TBA values of examined samples ranged from 0.52 to 0.69 mg malonaldehyde/kg with no significance difference could be established among all examined samples. Microbial counts of all examined samples exceeded ESS permissible limits. All samples showed psychrotrophic bacterial count above 4 log10 cfu/g was minced meat significant higher than other examined samples (5.1log10 cfu/g). All examined samples exceeded the permissible limit stated in ESS for coliforms counts. The highest yeast count recorded for hawawshi (3.44) and the lowest record for luncheon (2.4). The highest mould count record 3.35 in minced meat while the lowest mould record for beef burger (2.5). Staph. aureus and E. coli were isolated from 20% of examined samples, while Salmonella could be isolated from 10,48% of samples and failed to be isolated from beef burger and luncheon samples. Histological examination of meat products was produced from low quality meat according to its content of connective tissues. Parts of prohibited tissues like liver, skin, bone, cartilage, trachea, soya and plant tissues were detected in examined samples. Frozen meat and meat products marketed in Bab El-Louk are of high risk and low quality and constitute a major health hazard for consumers
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Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.10.06.M.Sc.2016.Sa.E (Browse shelf(Opens below)) Not for loan 01010110072524000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.10.06.M.Sc.2016.Sa.E (Browse shelf(Opens below)) 72524.CD Not for loan 01020110072524000

Thesis (M.Sc.) - Cairo University - Faculty of Veterinary Medicine - Department of Food Hygiene and Control

A total of 105 random samples of frozen meat and meat products represented by Beef burger, frozen meat, hawawshi, kofta, luncheon, minced meat and oriental Sausage (15 of each) were collected from "Bab El-Louk". The collected samples were kept in an ice box and directly transferred to laboratory under aseptic condition and examined for sensory evaluation (appearance, odour, texture, over all acceptability), deterioration criteria (pH, TVB-N, TBA), microbiological evaluation (total bacterial count, psychrotrophic count, coliforms count and total staphylococcal count, total yeast and mould count. in addition to isolation and identification of Staph. aureus, E. coli and Salmonella and histological examination. Based on sensory attributes score 56.19% of all examined samples are accepted. TVB-N ranged from 15.51{u2013}20.54 mg% with hawawshi samples showed the highest value. TBA values of examined samples ranged from 0.52 to 0.69 mg malonaldehyde/kg with no significance difference could be established among all examined samples. Microbial counts of all examined samples exceeded ESS permissible limits. All samples showed psychrotrophic bacterial count above 4 log10 cfu/g was minced meat significant higher than other examined samples (5.1log10 cfu/g). All examined samples exceeded the permissible limit stated in ESS for coliforms counts. The highest yeast count recorded for hawawshi (3.44) and the lowest record for luncheon (2.4). The highest mould count record 3.35 in minced meat while the lowest mould record for beef burger (2.5). Staph. aureus and E. coli were isolated from 20% of examined samples, while Salmonella could be isolated from 10,48% of samples and failed to be isolated from beef burger and luncheon samples. Histological examination of meat products was produced from low quality meat according to its content of connective tissues. Parts of prohibited tissues like liver, skin, bone, cartilage, trachea, soya and plant tissues were detected in examined samples. Frozen meat and meat products marketed in Bab El-Louk are of high risk and low quality and constitute a major health hazard for consumers

Issued also as CD

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