首页> 外文OA文献 >Determination of carotene, tocopherols and tocotrienols in residue oil from palm pressed fiber using pressurized liquid extraction-normal phase liquid chromatography
【2h】

Determination of carotene, tocopherols and tocotrienols in residue oil from palm pressed fiber using pressurized liquid extraction-normal phase liquid chromatography

机译:加压液相萃取-正相液相色谱法测定棕榈压榨纤维渣油中的胡萝卜素,生育酚和生育三烯酚

摘要

Pressurized liquid extraction (PLE) along with normal phase liquid chromatography (NPLC) is evaluated as a new approach for the determination of -carotene and Vitamin E isomers in residue oil obtained from palm pressed fiber (PPF). The relative extraction recoveries obtained by optimized PLE were found to be equivalent (~100%) to conventional Soxhlet extraction. Optimized PLE was obtained (5 g of sample, 80 ◦C, 1500 psi, 2× 10 min static extractions with flush volume 50%) combined with NPLC system. Typical extractions give 3.7–4.0 mg ml-1 of Vitamin E isomers and -carotene of 3.3–3.5 mg ml-1, which is similar to or greater than classical Soxhlet extraction with n-hexane or chloroform. The new developed method demonstrated an acceptable performance with good efficiency in terms of total extraction time, total solvent usage, total -carotene and Vitamin E isomers contents as well as exceptional method repeatability. © 2005 Published by Elsevier B.V.
机译:加压液体萃取(PLE)与正相液相色谱(NPLC)一起被评估为测定从棕榈压榨纤维(PPF)获得的渣油中β-胡萝卜素和维生素E异构体的新方法。发现通过优化的PLE获得的相对萃取回收率与常规的索氏提取法相当(〜100%)。与NPLC系统相结合,获得了优化的PLE(5 g样品,80℃,1500 psi,2×10分钟静态萃取,冲洗体积为50%)。典型提取可得到3.7–4.0 mg ml-1的维生素E异构体,β-胡萝卜素为3.3–3.5 mg ml-1,与使用正己烷或氯仿的经典索氏提取方法相似或更高。新开发的方法在总萃取时间,总溶剂用量,总胡萝卜素和维生素E异构体含量以及优异的方法可重复性方面均表现出令人满意的性能。 ©2005 Elsevier B.V.发布

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号