Influence of retinyl palmitate on nucleation and growth kinetics in batch sugarcane crystallization

被引：0

作者：

Quintana-Hernandez, P. A. ^{[1
]}

Medina-Galvan, X. M. ^{[1
]}

Maldonado-Caraza, D. ^{[1
]}

Reyes-Valadez, J. N. ^{[1
]}

机构：

[1] Tecnol Nacl Mexico Celaya ITC, Dept Ingn Quim, Antonio Garcia Cubas Pte 600 Esq Av Tecnol, Guanajuato 38010, Mexico

来源：

REVISTA MEXICANA DE INGENIERIA QUIMICA | 2021年 / 20卷 / 01期

关键词：

Crystal morphology; kinetics parameters; modelling; nucleation and growth rates; shape factors; CRYSTAL-GROWTH; IMPURITIES;

D O I：

10.24275/rmiq/Cat1928

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The influence of retinyl palmitate (RP) on nucleation and growth kinetics, in the sugarcane fortification process, is analyzed. Batch crystallization experiments, following natural and linear cooling profiles, were carried out adding different amounts of RP. At each experiment, 10 cm(3) samples were collected every 10 minutes and sugar concentration, crystal mass and crystal size distribution were measured. Nucleation and growth rates were calculated experimentally and kinetic parameters were determined using power-law type relations. At the end of each experiment, crystals were observed in a microscope and morphological changes were analyzed. The results showed that the presence of RP in the fortification process of sugar generated a decrease in both nucleation and growth rates. The decrement was bigger when the initial concentration of RP increased. Moreover, it was observed that fortified crystals suffered morphological changes into their habit.

引用

页码：185 / 194

页数：10

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