Facile synthesis of alcalase-inorganic hybrid nanoflowers used for soy protein isolate hydrolysis to improve its functional properties.

Abstract:

:In this work, a facile approach was developed to synthesized alcalase-inorganic hybrid nanocomposite (alcalase@CaHPO4) by immobilizing alcalase with calcium hydrogen phosphate (CaHPO4). The nanocomposite possessed flower-like morphological features with excellent hydrolysis activity on soybean protein isolates (SPI) with 1.57 fold higher compared to free alcalase. The experiment was evident of alcalase@CaHPO4 hybrid nanoflowers with 90% sustainability after the seven cycles of reusability and 80-100% relative activity at 50-70 °C and with 65% at pH 4 in acidic condition. Soybean protein hydrolysates (SPHs) produced by immobilized alcalase possessed 70% radical-scavenging capacity at 0.8 mg/mL concentration and 20% calcium-binding capacity at pH 6. The solubility of SPHs produced by alcalase@CaHPO4 hybrid nanoflowers was also improved by 15% compared to free alcalase. The high radical scavenging capability, good calcium binding capacity and improved solubility of SPHs prepared through alcalase@CaHPO4 hybrid nanoflowers would be highly promising in food industries.

journal_name

Food Chem

journal_title

Food chemistry

authors

Memon AH,Ding R,Yuan Q,Wei Y,Liang H

doi

10.1016/j.foodchem.2019.03.096

subject

Has Abstract

pub_date

2019-08-15 00:00:00

pages

568-574

eissn

0308-8146

issn

1873-7072

pii

S0308-8146(19)30581-3

journal_volume

289

pub_type

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