Cloning, expression and function analysis of trehalose-6-phosphate synthase gene from Marsupenaeus japonicu.

Trehalose is an important disaccharide that plays an important role in extreme environmental conditions. Trehalose-6-phosphate synthase (TPS) gene is the key gene for trehalose synthesis in Marsupenaeus japonicus. In this study, a TPS gene was isolated and characterized from M.

Fabrication and characterization of hollow starch nanoparticles by gelation process for drug delivery application.

Hollow nanoparticles (HNPs) have been widely regarded as controlled drug carriers owing to their advantages, such as high drug-loading efficiency and superior control over drug delivery and release. In this study, a facile and efficient strategy has been exploited for preparation of hollow starch nanoparticles (HSNPs) via a sacrificial hard-template process using gelled starch as the shell. These nanocapsules have been characterized through various techniques, including transmission electron microscopy, differential scanning calorimetry, X-ray diffraction, and Fourier transform infrared spectroscopy.

Characterizations of Pickering emulsions stabilized by starch nanoparticles: Influence of starch variety and particle size.

Pickering emulsions were first successfully fabricated by different types and sizes of corn, tapioca, sweet potato, and waxy corn starch nanoparticles as stabilizers. Photography, optical microscopy, confocal laser scanning microscopy, and rheology measurements were used to characterize Pickering emulsions stabilized by various starch nanoparticles. The results showed that tapioca, sweet potato, and corn starch nanoparticles were appropriate for Pickering emulsion stabilization because the three nanoparticles have nearly neutral wettability (θ ∼90°).

Preparation of Hollow Biopolymer Nanospheres Employing Starch Nanoparticle Templates for Enhancement of Phenolic Acid Antioxidant Activities.

Phenolic acids have been extensively studied because of their bioactive properties and disease prevention and control capacities. However, undesired odors and taste, low aqueous solubility, and thermal and ultraviolet (UV) light instability severely restrict their application. The aim of this work was to evaluate the enhancement in antioxidative activities of phenolic acids in hollow nanospheres and their stability in terms of their antioxidative activities under harsh conditions.

Synthesis and study the properties of StNPs/gum nanoparticles for salvianolic acid B-oral delivery system.

To fabricate stable sized and shaped controlled release delivery systems for salvianolic acid B (Sal B), different food gums were individually added to short-chain glucan solution to prepare starch nanoparticles (StNPs)/gum nanocomposites by self-assembly, and Sal B was embedded in situ. The results showed that size of StNPs was reduced to ca. 45nm with the addition of chitosan and rosin, which decreased by over 50% than that of StNPs without the gum.

The inhibition effect of starch nanoparticles on tyrosinase activity and its mechanism.

The objective of the current research was to investigate the effects of starch nanoparticles (SNPs) prepared from waxy maize, potato, normal corn, and tapioca starches on the activity of tyrosinase. As a main polyphenol oxidase, tyrosinase not only induces fruit and vegetable browning but also causes skin diseases by overproducing melanin. Herein, for the first time, we evaluated the inhibitory kinetics of SNPs on tyrosinase.