Sucrose release from polysaccharide gels

2016 ◽  
Vol 7 (5) ◽  
pp. 2130-2146 ◽  
Author(s):  
Katsuyoshi Nishinari ◽  
Yapeng Fang

Sucrose release from polysaccharide gels has been studied extensively because it is expected to be useful in understanding flavour release from solid foods and to find a new processing method which produces more palatable and healthier foods.

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 959 ◽  
Author(s):  
Seung Sik Ham ◽  
Ho Lee

In processes using the ultrashort pulsed laser, the phenomenon that the ablation efficiency is reduced due to the increase of the shielding effect of the generated plume is increasingly caused by the use of the high power and high repetition rate. A new method is needed to prevent a decrease in ablation efficiency in processing using an ultrashort pulsed laser. In this study, the proposed a processing method that can improve the ablation efficiency by providing an efficient escape path of plume, and examine the feasibility of a new processing method. The new method we proposed is a method of laser processing after generating a fine curvature in the polymer as a preliminary preparation. The fine curvature of the polymer produced by the preliminary preparation induces an artificial chimney-like opening along the path of the incident beam during laser processing, thereby enabling the plume to be effectively removed. The experiment for examine the feasibility through a new method was conducted using a 10-picosecond laser of UV wavelength with two optical systems. As a new processing method, when processing with ultrashort pulse laser, it was observed that the ablation efficiency improved.


e-Polymers ◽  
2015 ◽  
Vol 15 (2) ◽  
pp. 111-117 ◽  
Author(s):  
Hyung Min Kim ◽  
Hyun Su Kim ◽  
Seong Yun Kim ◽  
Jae Ryoun Youn

AbstractThe thermal conductivity of aerogel/epoxy composite based on the inexpensive powder form of silica aerogels by using water glass under ambient drying conditions was evaluated to investigate the relationship between the internal structure and the thermal conductivity of the composite. A high thermal conductivity was obtained for the composite fabricated by the typical liquid epoxy processing because the pores of the aerogels became filled with the epoxy resin during the processing of the composite. A new processing method for preserving the aerogel pores was then developed using ethanol evaporation, which lowered the thermal conductivity of the composite. The lowest thermal conductivity of 0.04 W/m K was obtained for the composite containing the as-received aerogel of 75 vol% with preserved pores. The preserved aerogel pores in the composite were the most significant physical factor in determining the thermal conductivity of the composite.


2015 ◽  
Vol 1 (3) ◽  
pp. 152-159 ◽  
Author(s):  
B. M. Cromer ◽  
E. B. Coughlin ◽  
A. J. Lesser

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