کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6488391 | 1416461 | 2018 | 31 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sequential process with bioadsorbents and microfiltration for clarification of pequi (Caryocar brasiliense Camb.) fruit extract
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Pequi is a native fruit from the Brazilian Cerrado (savanna) which presents considerable amounts of phenolic compounds. After extraction of bioactive compounds, macroscopic pretreatments may be advantageous before purification and concentration processes. Three different bioadsorbents (chitosan and integral and defatted moringa seeds) were evaluated for pequi fruit extract clarification. A proper adsorbent concentration was proposed in order to achieve the desired clarification without reducing total polyphenolic compounds (TPC) to a large extent. All adsorbents were efficient in reducing total solids and lipids from pequi extract, but chitosan presented outstanding performance for lipid removal. The selected chitosan concentration was of 0.1 g Lâ1 and total solids (TS), lipids and TPC reduced from 20.6 to 16.7 g Lâ1, 1.07% to 0.46% and 1.08 to 0.77 mgGAE gâ1pulp (GAE, gallic acid equivalent), respectively. In a sequential process of microfiltration, the chitosan pretreatment increased the permeate flux through the membrane in approximately 27%. The permeate presented TS of 8.3 g Lâ1, TPC of 0.54 mgGAE gâ1 pulp, lipid content of 0.16% and concentrations of gallic, p-coumaric and ellagic acids of 342.4, 8.43 and 175.5 μg mLâ1. Thus, the proposed sequential process was efficient in clarifying pequi extract.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food and Bioproducts Processing - Volume 108, March 2018, Pages 105-116
Journal: Food and Bioproducts Processing - Volume 108, March 2018, Pages 105-116
نویسندگان
Flávia de Santana Magalhães, Vicelma Luiz Cardoso, Miria Hespanhol Miranda Reis,