Effect Of Raspberry Pomace Extracts Isolated By High Pressure Extraction On The Quality And Shelf-Life Of Beef Burgers
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY(2017)
摘要
Raspberry pomace extracts isolated with supercritical carbon dioxide (SCE) and pressurised ethanol/water (ETE) were tested in beef burgers. Only ETE additives effectively inhibited lipid oxidation and the growth of microorganisms, as it was observed by measuring the changes of thiobarbituric acid reactive substances, bacterial counts and the content of O-2 and CO2 during storage in the modified atmosphere package. ETE additives also demonstrated some meat colour preservation effects, which were assessed by the intensity of hamburger colour and metmyoglobin concentration. However, ETE additives did not alter burger's taste at the applied concentrations (up to 1%). It may be concluded that the most effective extracts possessing strong antioxidant and antimicrobial activity may be isolated from raspberry pomace by the pressurised liquid extraction with a hydroethanolic solvent; such extracts may be considered as promising additives in meat products for improving their stability and enriching with beneficial to health phytochemicals.
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关键词
Antimicrobial activity, beef burger, inhibition of oxidation, meat stability, raspberry pomace extracts
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