Periodic wet milling as a solution to size-based separation of crystal products from biocatalyst for continuous reactive crystallization

AbstractIn this study, amaranth starch was extracted by high-impact wet milling and its structural and thermal properties and the effect of NaOH and SDS concentrations on extraction yield were evaluated. The best condition was 55 g of starch/100 g of amaranth, with a decrease from 2.5 to 3.5 kJ/g using different milling energies. The decrease in the protein content of the starch granule is due to an effect of the interaction between surfactant and alkali, preventing the destruction of granules. All starches presented a degree of crystallinity between 21 and 28%. The internal structural changes of the starch granule were monitored by attenuated total reflectance - Fourier-transform infrared (ATR-FTIR) in the region of 990 to 1060 cm−1. Spectra showed significant differences between the peaks at 1032 and 1005 cm−1, corresponding to the crystalline/amorphous region of the starch structure. Changes in viscosity profiles were observed between 0.302 and 1.163 Pa s.

Download Full-text

Effect of Wet Milling and Purification Process on Yield and Color of Jackfruit Seed Starch

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/991/1/012030 ◽

2020 ◽

Vol 991 ◽

pp. 012030

Author(s):

V T Thanh ◽

V C Khang ◽

N P T Nhan ◽

D T Nguyen ◽

T T B Nhi ◽

...

Keyword(s):

Purification Process ◽

Wet Milling

Download Full-text

Semi-batch reactive crystallization of sodium perborate tetrahydrate: effect of mixing parameters on crystal size

Chemical Engineering Science ◽

10.1016/s0009-2509(02)00574-2 ◽

2003 ◽

Vol 58 (7) ◽

pp. 1125-1133 ◽

Cited By ~ 9

Author(s):

Prashant N. Mandare ◽

Vishwas G. Pangarkar

Keyword(s):

Crystal Size ◽

Sodium Perborate ◽

Mixing Parameters ◽

Reactive Crystallization

Download Full-text

Preparation of High Density Graphite Materials from Coal Tar Pitch

MRS Proceedings ◽

10.1557/proc-349-43 ◽

1994 ◽

Vol 349 ◽

Author(s):

Yang-Duk Park ◽

Chul-Woo Kim ◽

Young-Dae Seo

Keyword(s):

Mechanical Properties ◽

Coal Tar ◽

Resin Content ◽

High Density ◽

Coal Tar Pitch ◽

Wet Milling ◽

Density Graphite ◽

Milling Method

ABSTRACTPreparation of high density graphite materials from coal tar pitch was investigated. The effect of β-resin content on the mechanical properties of graphite solid prepared from semi-coke, which was prepared by wet milling method, was examined. β-Resin content was effective for fabrication of green bodies without lamination and for improving the mechanical properties of graphite materials.

Download Full-text