Recovery of colorants from red prickly pear peels and pulps enhanced by pulsed electric field and ultrasound
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- 作者：Mohamed Koubaaa ; Francisco J. Barbab ; Nabil Grimia ; nabil.grimi@utc.fr" class="auth_mail" title="E-mail the corresponding author ; Houcine Mhemdia ; Wael Koubaaa ; Nadia Boussettaa ; Eugè ; ne Vorobieva
- 关键词：Pulsed electric fields ; Ultrasounds ; By-products ; Red prickly pear ; Food colorants
- 刊名：Innovative Food Science & Emerging Technologies
- 出版年：2016
- 出版时间：October 2016
- 年：2016
- 卷：37
- 期：part_PC
- 页码：336-344
- 全文大小：1339 K
文摘
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Extraction of red colorants from red prickly pear peels and pulps was studied.
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Betanin and isobetanin were identified in the extract using HPLC analysis.
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Pulsed electric fields (PEFs) and ultrasounds (USNs) enhanced red colorants extraction.
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Scanning electron microscopy pictures revealed cell denaturation after PEFs and USNs.
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PEF and USN treatments resulted in better recovery of colorants and less impurity.