Optimized carbonylation treatment of Litopenaeus vannamei matrix decreased its immunoreactivity and improved edible quality, simultaneously.

The study aimed to investigate how carbonylation affects the immunoreactivity and edible quality of the Litopenaeus vannamei matrix. The carbonylation treatment conditions of the shrimp matrix were optimized. Firstly, the treatment condition is optimized with 1.

The Enrichment of Docosahexaenoic Acid from Microalgal Oil by Urea Complexation via Rotary-evaporation Crystallization.

Urea complexation is a widely used method for enriching polyunsaturated fatty acids, and cooling is the traditional approach for urea crystallization. This study aimed to investigate the potential of rotary-evaporation under vacuum as an alternative method for urea crystallization in urea complexation to enrich docosahexaenoic acid (DHA). DHA-containing microalgal oil was converted to ethyl esters (EE) as the raw material.

Production of Structured Triacylglycerols Containing Palmitic Acids at sn-2 Position and Docosahexaenoic Acids at sn-1, 3 Positions.

Docosahexaenoic acid supplementation has been shown well-established health benefits that justify their use as functional ingredients in healthy foods and nutraceutical products. Structured triacylglycerols rich in 1,3-docosahexenoyl-2-palmitoyl-sn-glycerol were produced from algal oil (Schizochytrium sp) which was prepared by a two-step process. Novozym 435 lipase was used to produce tripalmitin.

[Application of wavelet transform on improving detecting precision of the non-invasive blood components measurement based on dynamic spectrum method].

Time-varying noises in spectra collection process have influence on the prediction accuracy of quantitative calibration in the non-invasive blood components measurement which is based on dynamic spectrum (DS) method. By wavelet transform, we focused on the absorbance wave of fingertip transmission spectrum in pulse frequency band. Then we increased the signal to noise ratio of DS data, and improved the detecting precision of quantitative calibration.

[Analysis of fatty acid composition of Ulva pertusa Kjellm by gas chromatography/mass spectrometry].

A method of gas chromatography/mass spectrometry (GC/MS) was established to determine the fatty acids of Ulva pertusa Kjellm. The total lipids of Ulva pertusa Kjellm were extracted using Folch method, derivatized with HCl-CH3OH solution, and analyzed by GC/MS. The fragmentation patterns and mass spectrometry characteristics of saturated fatty acids, monounsaturated fatty acids and polyunsaturated fatty acids were analyzed and concluded by regular patterns of organic mass spectrometry.