Flow behavior and mechanical properties of water chestnut ( Trapa natans ) under steady shear as affected by acid and autoclave treatment

2021 ◽  
Author(s):  
Mohmad Sayeed Bhat ◽  
Shalini Subhash Arya
Keyword(s):  
Mechanical Properties ◽  
Flow Behavior ◽  
Steady Shear ◽  
Autoclave Treatment ◽  
Water Chestnut ◽  
Trapa Natans

Drying and rehydration characteristics of water chestnut (Trapa natans) as a function of drying air temperature

2008 ◽  
Vol 87 (2) ◽  
pp. 213-221 ◽  
Author(s):  
Gagan Deep Singh ◽  
Rajiv Sharma ◽  
A.S. Bawa ◽  
D.C. Saxena
Keyword(s):  
Air Temperature ◽  
Water Chestnut ◽  
Trapa Natans

Skin-related enzyme inhibitory activity by hydrolyzable polyphenols in water chestnut (Trapa natans) husk

2021 ◽  
Vol 85 (3) ◽  
pp. 666-674
Author(s):  
Midori Yasuda ◽  
Masaki Ikeoka ◽  
Shin-ichi Kondo
Keyword(s):  
Suppressive Effect ◽  
Postprandial Blood Glucose ◽  
Water Chestnut ◽  
Trapa Natans ◽  
Related Enzyme ◽  
Inhibitory Activities ◽  
Blood Glucose Elevation ◽  
Lifestyle Related Diseases ◽  
The Devil ◽  
Floating Leaf

ABSTRACT Water chestnut is a floating leaf plant native to Asia and Europe. Its fruit has long been used as an edible and herbal medicine. Water chestnut contains many polyphenols and its consumption can prevent lifestyle-related diseases because it has a suppressive effect on postprandial blood glucose elevation; however, its suitability as a cosmetic material is unknown. Therefore, this study aimed at investigating the antiaging effect of polyphenols contained in the husk of the devil water chestnut (Trapa natans). Six hydrolyzable polyphenols—1,6-di-O-galloyl-β-d-glucopyranose, 1,2,6-tri-O-galloyl-β-d-glucopyranose, 1,6-di-O-galloyl-2,3-O-(S)-hexahydroxydiphenoyl-β-d-glucopyranose (nobotanin D), eugeniin, 1,2,3,6-tetra-O-galloyl-β-d-glucopyranose, and trapain—were collected and isolated from the water chestnut husk. These polyphenols showed high antioxidant and antiglycation activities. In addition, inhibitory activities against hyaluronidase, elastase, and collagenase were observed. Especially, eugeniin and trapain, which have many gallic acids and a hexahydroxy-biphenyl group, showed high inhibitory activities. Thus, the polyphenols in water chestnut are beneficial for antiaging effects.

Flow Behavior of Composites of PA6/Kaolin Nanoparticles

2014 ◽  
Vol 703 ◽  
pp. 45-50
Author(s):  
Chao Wang ◽  
Ying Chun Li ◽  
Guo Sheng Hu
Keyword(s):  
Mechanical Properties ◽  
Flow Behavior ◽  
Acrylonitrile Butadiene Styrene ◽  
Nylon 6 ◽  
Mechanical Analysis ◽  
Melt Blending ◽  
Styrene Maleic Anhydride ◽  
The Impact ◽  
Scanning Electron ◽  
Butadiene Styrene

The blends of Nylon 6/Acrylonitrile-Butadiene-Styrene (ABS) with styrene-maleic anhydride (SMA) was prepared by melt blending as the compatilizer. Mechanical properties, dynamic mechanical analysis (DMA) and fracture appearances were determined. It was found that the impact and tensile strength firstly increased and then decreased along with the increase of the SMA content. The properties reached maximum values when the content of SMA was 1.5%. The results of DMA and scanning electron microscope (SEM) indicated that the addition of SMA can effectively enhance the compatibility of Nylon 6 and ABS. Key words: Nylon 6, ABS, SMA, blends, modification

Steady shear flow behavior of gum extracted from Ocimum basilicum L. seed: Effect of concentration and temperature

2010 ◽  
Vol 101 (3) ◽  
pp. 236-243 ◽  
Author(s):  
S.H. Hosseini-Parvar ◽  
L. Matia-Merino ◽  
K.K.T. Goh ◽  
S.M.A. Razavi ◽  
S.A. Mortazavi
Keyword(s):  
Shear Flow ◽  
Flow Behavior ◽  
Ocimum Basilicum ◽  
Steady Shear ◽  
Steady Shear Flow ◽  
Steady Shear Flow Behavior
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