{"title":"Effects of Photochemical Extracted From Some Plants on Shelf Life and Quality of\u0000Beef Burger","authors":"","doi":"10.33140/anfs.04.01.07","DOIUrl":"https://doi.org/10.33140/anfs.04.01.07","url":null,"abstract":"This study investigated some aspects to enhance the quality of beef burger. Some plants extracts of green tea (GTE), roselle\u0000(RE), lemon grass (LGE) and olive leaf (OLE) were added individually during the preparation of beef burger. These\u0000extracts were tested against some pathogenic bacteria. Some chemical attributes and sensory evaluation of the product\u0000were investigated during storage of the product at 4 ºC for 18 days. These plants extracts showed high antioxidant activity\u0000for the tested sample due to their content of natural compounds such as phenolic compounds during cold storage. Phenolic\u0000content in green tea and olive leaf extracts were significantly higher than in roselle and lemon grass extracts. Sensory\u0000evaluation showed high scores for the tested samples. Bacteriological analysis revealed that the mean total bacterial count\u0000was ranged from 5.09 to 6.0 log10 (cfu/g). While mould and yeast mean count ranged from 1.87 to 3.46 log10 (cfu/g) and\u0000coliform bacterial count ranged from less than 102\u0000cfu/g. Bacillus cereus, Staphylococcus aureus and Listeria monocytogenes\u0000were not detected in all treatments of beef burger. This study showed that the addition of natural antioxidant extracts for beef\u0000burger could improve quality and provide safe product during storage by reducing microbial growth and lipid oxidation.","PeriodicalId":173678,"journal":{"name":"Advances in Nutrition & Food Science","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124307725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}