کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8491681 | 1552390 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Natural antioxidants in extruded fish feed: Protection at different storage temperatures
ترجمه فارسی عنوان
آنتی اکسیدان های طبیعی در خوراک ماهی اکسترود شده: حفاظت در دمای های مختلف ذخیره سازی
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کلمات کلیدی
BHTNRCTBARSMDANFEnitrogen free extractNatural antioxidants - آنتی اکسیدان های طبیعیThyme essential oil - اسانس اسانسrepeated measures analysis of variance - اندازه گیری های مکرر تجزیه و تحلیل واریانسFish feed - تغذیه ماهیRANOVA - راناواNational Research Council - شورای تحقیقات ملیRosemary extract - عصاره رزماریmalondialdehyde - مالون دی آلدهیدthiobarbituric acid reactive substances - مواد واکنش پذیر اسید تیوباربیتوریک
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
چکیده انگلیسی
This study examines five different specifically designed extruded fish feeds: BD (basal diet), without added antioxidants; BHT, with 200 mg/kg of butylhydroxytoluene; RO, with 600 mg/kg of rosemary extract (Rosmarinus officinalis); TC, with 500 mg/kg of thyme essential oil (Thymbra capitata, carvacrol chemotype); and TZ, with 500 mg/kg of thyme essential oil (Thymus zygis, subspecies gracilis, thymol chemotype). The feeds were produced by means of a cooking-extrusion process and were stored under standard conditions at two different average temperatures, either refrigerated (4 ± 1 °C) or at ambient temperature (20-28 °C). Samples were taken during processing (raw mix, recently extruded (moist) and dry feed) and at 4, 8, 12 and 24 weeks of storage. Both TBARS and induced TBARS were determined at each sampling point, as well as phenolic compounds content after feed processing. During the preparation process, the RO feed was the least oxidized and retained the least amount of phenols. The oxidative status of all feeds was maintained in cold storage, although the BD diet became less resistant to induced oxidation. At ambient temperature, the RO and BHT feeds showed the greatest protection against induced oxidation starting at week 8, and at the end of the storage period, the RO feed was the least oxidized. Overall, rosemary extract had a similar effect to that of butylhydroxytoluene on the processing and storage of extruded feed, and better than that of thyme essential oils.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Animal Feed Science and Technology - Volume 195, September 2014, Pages 112-119
Journal: Animal Feed Science and Technology - Volume 195, September 2014, Pages 112-119
نویسندگان
A. Hernández, B. GarcÃa GarcÃa, M.J. Jordán, M.D. Hernández,