Applications and characterization of anti-browning enzymatically modified potato starch (EPS) film associated with chitosan (CTS)/L-Cys/citric acid (CA) on fresh-cut potato slices.

This study explores the influence of incorporating L-cysteine (L-Cys), chitosan (CTS), and citric acid (CA) on the enzymatic modification of potato starch (EPS) films to enhance anti-browning properties. Four types of EPS composite films were evaluated for preserving fresh-cut potato slices at low temperatures to inhibit browning. Their thermal, physiochemical, mechanical, and digestibility properties were assessed.

Use of different food additives to control browning in fresh-cut potatoes.

Fresh-cut potato browning is a severe problem in the potato processing industry. Ascorbic acid, L-cysteine, hydrogen sulfide (HS), and nitric oxide (NO) have been reported to reduce the browning in fresh-cut vegetables and fruits. We compared the effect of each food additive at its commonly used concentration on fresh-cut potato browning in order to choose a highly efficient treatment and explore its mechanism.

Zinc enrichment of whole potato tuber by vacuum impregnation.

Zinc is a nutritionally essential truce element, and thus zinc deficiency (ZD) severely affects human health. More than 25% of the world's population is at risk of ZD. This study was initiated to examine the use of the vacuum impregnation (VI) technique for enriching zinc content of whole potatoes; the effect of vacuum time, restoration time, steam-cooking and storage at 4 °C on the zinc content of VI whole potatoes was evaluated.

[Studies on preparation of meso-Hangjin2# clay and its characteristic of spectrum].

The natural clay named Hangjin2# clay was used as raw materials and cetyltrimethylammonium bromide (CTAB) was used as organo-intercalating reagents to synthesize organic modified clay from acid treated Hangjin2# clay. The results of FTIR show that the modified reagents were intercalated to the layer of Hangjin2# clay. The meso-Hangjin2# clay was prepared with organic modified clay calcinated at 550 degrees C and the crystalline phase and morphology were characterized by X-ray powder diffraction (XRD) and scanning electron microscope (SEM).