Effects of water‐soluble soybean polysaccharide on rheological properties, stability and lipid digestibility of oil‐in‐water emulsion during in vitro gastrointestinal digestion

2020 ◽  
Vol 55 (4) ◽  
pp. 1437-1447 ◽  
Author(s):  
Sunsanee Udomrati ◽  
Thidarat Pantoa ◽  
Shoichi Gohtani ◽  
Mitsutoshi Nakajima ◽  
Kunihiko Uemura ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Water Soluble ◽  
Gastrointestinal Digestion ◽  
Water Emulsion ◽  
In Vitro Gastrointestinal Digestion ◽  
Oil In Water ◽  
Oil In Water Emulsion ◽  
Lipid Digestibility

scholarly journals Preparation of Fluorescent Molecularly Imprinted Polymers via Pickering Emulsion Interfaces and the Application for Visual Sensing Analysis of Listeria Monocytogenes

Polymers ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 984 ◽  
Author(s):  
Xiaolei Zhao ◽  
Yan Cui ◽  
Junping Wang ◽  
Junying Wang
Keyword(s):  
Listeria Monocytogenes ◽  
Sample Pretreatment ◽  
Spherical Shape ◽  
Pickering Emulsion ◽  
Food Samples ◽  
Water Soluble ◽  
Water Emulsion ◽  
Molecularly Imprinted ◽  
Oil In Water ◽  
Oil In Water Emulsion

In this work, a novel molecularly imprinted polymer (MIP) with water-soluble CdTe quantum dots (QDs) was synthesized by oil-in-water Pickering emulsion polymerization using whole Listeria monocytogenes as the template. Listeria monocytogenes was first treated by acryloyl-functionalized chitosan with QDs to form a bacteria–chitosan network as the water phase. This was then stabilized in an oil-in-water emulsion comprising a cross-linker, monomer, and initiator, causing recognition sites on the surface of microspheres embedded with CdTe QDs. The resulting MIP microspheres enabled selective capture of the target bacteria via recognition cavities. The target bacteria Listeria monocytogenes was detected. Scanning electron microscopy (SEM) characterization showed that the MIPs had a rough spherical shape. There was visual fluorescence detection via quenching in the presence of the target molecule, which offered qualitative detection of Listeria monocytogenes in milk and pork samples. The developed method simplified the analysis process and did not require any sample pretreatment. In addition, the fluorescence sensor provided an effective, fast, and convenient method for Listeria monocytogenes detection in food samples.

scholarly journals Sea Buckthorn Oil as a Valuable Source of Bioaccessible Xanthophylls

Nutrients ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 76 ◽  
Author(s):  
Cristina Tudor ◽  
Torsten Bohn ◽  
Mohammed Iddir ◽  
Francisc Vasile Dulf ◽  
Monica Focşan ◽  
...  
Keyword(s):  
In Vitro Digestion ◽  
Sea Buckthorn ◽  
Cholesterol Esterase ◽  
Water Emulsion ◽  
Oil In Water ◽  
Sea Buckthorn Oil ◽  
Oil In Water Emulsion ◽  
Zeaxanthin Dipalmitate ◽  
Β Carotene

Sea buckthorn oil, derived from the fruits of the shrub, also termed seaberry or sandthorn, is without doubt a strikingly rich source of carotenoids, in particular zeaxanthin and β-carotene. In the present study, sea buckthorn oil and an oil-in-water emulsion were subjected to a simulated gastro-intestinal in vitro digestion, with the main focus on xanthophyll bioaccessibility. Zeaxanthin mono- and di-esters were the predominant carotenoids in sea buckthorn oil, with zeaxanthin dipalmitate as the major compound (38.0%). A typical fatty acid profile was found, with palmitic (49.4%), palmitoleic (28.0%), and oleic (11.7%) acids as the dominant fatty acids. Taking into account the high amount of carotenoid esters present in sea buckthorn oil, the use of cholesterol esterase was included in the in vitro digestion protocol. Total carotenoid bioaccessibility was higher for the oil-in-water emulsion (22.5%) compared to sea buckthorn oil (18.0%) and even higher upon the addition of cholesterol esterase (28.0% and 21.2%, respectively). In the case of sea buckthorn oil, of all the free carotenoids, zeaxanthin had the highest bioaccessibility (61.5%), followed by lutein (48.9%), making sea buckthorn oil a potential attractive source of bioaccessible xanthophylls.

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