Pyrodextrins from waxy and normal tapioca starches: Molecular structure and in vitro digestibility

2021 ◽  
Vol 252 ◽  
pp. 117140
Author(s):  
Wanphen Weil ◽  
Robert C. Weil ◽  
Suttipun Keawsompong ◽  
Klanarong Sriroth ◽  
Paul A. Seib ◽  
...  
Keyword(s):  
Molecular Structure ◽  
In Vitro Digestibility

Composition, Molecular Structure, Properties, and In Vitro Digestibility of Starches from Newly Released Canadian Pulse Cultivars

2008 ◽  
Vol 85 (4) ◽  
pp. 471-479 ◽  
Author(s):  
Hyun-Jung Chung ◽  
Qiang Liu ◽  
Elizabeth Donner ◽  
Ratnajothi Hoover ◽  
Tom D. Warkentin ◽  
...  
Keyword(s):  
Molecular Structure ◽  
In Vitro Digestibility ◽  
Structure Properties

scholarly journals Use of Amylomaltase to Steer the Functional and Nutritional Properties of Wheat Starch

Foods ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 303
Author(s):  
Konstantinos Korompokis ◽  
Lomme J. Deleu ◽  
Niels De Brier ◽  
Jan A. Delcour
Keyword(s):  
Molecular Structure ◽  
Thermus Thermophilus ◽  
In Vitro Digestion ◽  
Time Profile ◽  
Wheat Starch ◽  
In Vitro Digestibility ◽  
Nutritional Properties ◽  
In Situ Modification ◽  
Paste Viscosity

The fine molecular structure of starch governs its functionality and digestibility, and enzymatic approaches can be utilized to tailor its properties. The aim of this study was to investigate the in situ modification of starch by amylomaltase (AMM) from Thermus thermophilus in model starch systems subjected to hydrothermal treatments under standardized conditions and the relationship between molecular structure, rheological properties and in vitro digestibility. When low dosages of AMM were added to a wheat starch suspension prior to submitting it to a temperature-time profile in a Rapid Visco Analyzer, the increased peak viscosity observed was attributed to partial depolymerization of amylose, which facilitated starch swelling and viscosity development. At higher dosages, the effect was smaller. The low cold paste viscosity as a result of the activity of AMM reflected substantial amylose depolymerization. At the same time, amylopectin chains were substantially elongated. The longer amylopectin chains were positively correlated (R2 = 0.96) with the melting enthalpies of retrograded starches, which, in turn, were negatively correlated with the extent (R2 = 0.92) and rate (R2 = 0.79) of in vitro digestion. It was concluded that AMM has the potential to be used to deliver novel starch functionalities and enhance its nutritional properties.

Effect of Two Different Drying Methods on Molecular Structure, In Vitro Digestibility and Chemical Properties of Oca Tuber Flour

2020 ◽  
Vol 72 (9-10) ◽  
pp. 2000037
Author(s):  
María Eugenia Gonzalez‐Cervantes ◽  
Heidi María Palma‐Rodríguez ◽  
Juan Pablo Hernandez‐Uribe ◽  
Fabiola Araceli Guzman‐Ortiz ◽  
Apolonio Vargas‐Torres
Keyword(s):  
Molecular Structure ◽  
Chemical Properties ◽  
In Vitro Digestibility ◽  
Drying Methods ◽  
And Chemical Properties

High-Pressure Homogenization Alters Physicochemical Properties and In Vitro Digestibility of Chinese Yam (Dioscorea Opposita Thunb.) Starch

2018 ◽  
Vol 18 (1) ◽  
pp. 10-15
Author(s):  
Wang Yi-Wei ◽  
He Yong-Zhao ◽  
An Feng-Ping ◽  
Huang Qun ◽  
Zeng Feng ◽  
...  
Keyword(s):  
High Pressure ◽  
Physicochemical Properties ◽  
Starch Content ◽  
In Vitro Digestibility ◽  
High Pressure Homogenization ◽  
Starch Granules ◽  
Cross Polarization ◽  
Chinese Yam ◽  
Crystal Type

In this study, Chinese yam starch-water suspension (8%) were subjected to high-pressure homogenization (HPH) at 100 MPa for increasing cycle numbers, and its effect of on the physicochemical properties of the starch was investigated. Results of the polarizing microscope observations showed that the starch granules were disrupted (i.e. greater breakdown value) after HPH treatment, followed by a decrease in cross polarization. After three HPH cycles, the crystallinity of starch decreased, while the crystal type remained unaltered. Meanwhile, the contents of rapidly digestible starch and slowly digestible starch were increased. On the contrary, resistant starch content was decreased. Our results indicate that HPH treatment resulted in reduction of starch crystallinity and increase of starch digestibility.

scholarly journals DATA ON THE IN-VITRO DIGESTIBILITY OF ACID GELS PREPARED FROM BREWERS’ SPENT GRAIN PROTEIN ISOLATES

Data in Brief ◽  
2021 ◽  
pp. 107160
Author(s):  
Thierry HELLEBOIS ◽  
Claire GAIANI ◽  
Cédric PARIS ◽  
Sébastien PLANCHON ◽  
Jenny RENAUT ◽  
...  
Keyword(s):  
In Vitro Digestibility ◽  
Grain Protein ◽  
Protein Isolates ◽  
Spent Grain

scholarly journals Chemical composition and in vitro digestibility of some selected under-utilized tropical seeds as protein sources in ruminants’ diet

2020 ◽  
Vol 44 (1) ◽  
Author(s):  
Oluwatosin Bode Omotoso ◽  
Mary Oluwafunmilayo Adeduntan ◽  
Adebowale Noah Fajemisin
Keyword(s):  
Short Chain Fatty Acids ◽  
Nutritional Composition ◽  
Metabolizable Energy ◽  
In Vitro Digestibility ◽  
Protein Sources ◽  
Dry Matter Digestibility ◽  
Supplementary Feed ◽  
Monodora Myristica

Abstract Background The study highlighted the potential of three common and under-utilized tropical leguminous seeds (Tomentosa nilotica, Dioclea reflexa and Monodora myristica) to be used as supplementary feed to ruminant livestock. These seeds (their plants inclusive) are valuable sources of food and medicine for the prevention of illness and maintenance of human health. The medicinal properties of these seeds include antimicrobial, anti-inflammatory, anti-oxidant and immuno-stimulant. Trypsin inhibitors, which are common anti-nutritional factors in legumes and for monogastric animals, do not exert adverse effects in ruminants because they are degraded in the rumen. Hence, the crux of this study is to examine the effect of processing methods on the nutritional composition (proximate, fibre fractions, minerals, anti-nutrients) and in vitro digestibility of Tomentosa nilotica, Dioclea reflexa and Monodora myristica seeds and their suitability as feedstuff (protein sources) in small ruminant feed, particularly during off-season. Results From the results, raw Tomentosa nilotica and Monodora myristica have the highest crude protein (30.35% CP) and fat (22.40% EE), respectively. It is noteworthy that roasting best improve the mineral and significantly reduce the anti-nutrients observed in this study better compared to boiling and soaking methods. The highest organic matter digestibility, short-chain fatty acids, metabolizable energy and in vitro dry matter digestibility values were obtained in Dioclea reflexa compared to other test seeds. Roasting best improved the nutritive values, while Dioclea reflexa seed was rated highest for all the nutritional attributes and in vitro digestibility. Conclusions Dioclea reflexa could be incorporated in ruminants’ diet as protein source, particularly during the off-season, for improved ruminant production in Nigeria. However, in vivo study is therefore recommended to validate this report.

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