fulltext.study @t Gmail

Autohydrolysis of Annona cherimola Mill. seeds: Optimization, modeling and products characterization

Paper ID Volume ID Publish Year Pages File Format Full-Text
2782 135 2015 8 PDF Available
Title
Autohydrolysis of Annona cherimola Mill. seeds: Optimization, modeling and products characterization
Abstract

•Autohydrolysis of cherimoya seeds was optimized to produce oligosaccharides.•A simple approach for autohydrolysis’ kinetic modelling is presented and discussed.•The produced oligosaccharides are highly stable and possibly non-digestible.•The remaining cellulose enriched solid is prone to be used for further valorization.

Annona cherimola Mill. seeds are a residue of the industrial processing of this fruit, for which, presently, there is no industrial application. They have a considerable amount of oil, which can be converted into biodiesel, but the remaining lignocellulosic fraction still needs relevant added-value valorization routes.In this work, the selective hemicelluloses removal by autohydrolysis was optimized aiming to maximize the yield of oligosaccharides with potential applications in food, pharmaceutical and cosmetic industries. A maximum of 10.4 g L−1 of oligosaccharides was obtained, for a severity factor of 3.6, where 74.5% of the original hemicellulose was solubilized.The process kinetics is presented, modeled (based on the Arrhenius equation) and its scale-up is discussed. The hydrolyzate shelf-life was evaluated and the produced oligosaccharides are stable at room temperature for, at least, 3 weeks. Furthermore, all oligosaccharides are also stable at 100 °C for 1 h, in pH values between 1 and 11, enabling their industrial processing, and at 37 °C for 3 h, in pH values between 1 and 3, thus indicating its potential classification as non-digestible oligosaccharides. The remaining cellulose enriched solids presented an increased enzymatic digestibility (as a function of the autohydrolysis severity) that assures its efficient use in subsequent processes (e.g., bioethanol production).The upgrade route developed in this work in combination to the previously reported use of A. cherimola seed oil for biodiesel production can lead to an integrated zero-waste valorization strategy within the biorefinery framework.

Keywords
Biorefinery; Heterogeneous reaction; Kinetic parameters; Modeling; Optimization; Xylo-oligosaccharides
First Page Preview
Autohydrolysis of Annona cherimola Mill. seeds: Optimization, modeling and products characterization
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 104, 15 December 2015, Pages 2–9
Authors
, , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us