Effect of hydrogen peroxide-dependent enzyme systems on the in-vitro digestibility of untreated and ammonia-treated barley straws

1994 ◽  
Vol 64 (3) ◽  
pp. 371-378 ◽  
Author(s):  
Abdul-Shakoor Chaudhry ◽  
Eric L Miller
Keyword(s):  
Hydrogen Peroxide ◽  
In Vitro Digestibility ◽  
Enzyme Systems

Washing and filtration of wheat straw treated with sodium hydroxide alone or with hydrogen peroxide to modify cell wall composition and in vitro digestibility

1997 ◽  
Vol 37 (6) ◽  
pp. 617 ◽  
Author(s):  
A. S. Chaudhry
Keyword(s):  
Hydrogen Peroxide ◽  
Wheat Straw ◽  
Dry Matter ◽  
Ph Control ◽  
Fibre Content ◽  
In Vitro Digestibility ◽  
Neutral Detergent Fibre ◽  
Chemical Treatments ◽  
Dry Matter Digestibility

Summary. This study compared the effect of different levels (24–160 g/kg DM) of NaOH alone or in combination with 2 levels (130 or 260 g/kg straw DM) of H2O2 (alkaline hydrogen peroxide, AHP) in improving in vitro dry matter digestibility of wheat straw. The study also examined the role of filtration or a water wash of straws treated at a regulated pH (± s.d.) of 11.5 ± 0.2 to maximise the effects of NaOH and AHP on in vitro dry matter digestibility. The experiment was a 3 × 2 × 3 factorial design, replicated twice, and included 3 straw groups (pH-control, NaOH-control, AHP), each treated with 2 volumes of chemical solutions (high, 26 L/kg DM containing 48 or 160 g NaOH alone or 160 g NaOH plus 260 g H2O2 ; low, 13 L/kg DM containing 24 or 80 g NaOH alone or 80 g NaOH plus 130 g H2O2 ) and each was subdivided into 3 groups for storage (unfiltered, filtered, washed). Both NaOH-control and AHP reduced (P<0.001) neutral detergent fibre content and increased (P<0.001) in vitro dry matter digestibility of straw compared with pH-control. However, AHP was more effective (P<0.001) in reducing neutral detergent fibre and increasing in vitro dry matter digestibility of straw compared with NaOH alone. Filtration and washing of treated straws increased (P<0.001) neutral detergent fibre and reduced (P<0.001) in vitro dry matter digestibility compared with unfiltered samples of treated straws. High volumes of chemicals were more effective (P<0.001) in reducing neutral detergent fibre content and improving in vitro dry matter digestibility of straws compared with those treated with low volumes of chemicals. While regulation of pH around 11.5 was effective in reducing neutral detergent fibre and enhancing in vitro dry matter digestibility the use of filtration or a water wash of straws following chemical treatments is not recommended.

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

An in vitro senescence model of gingival epithelial cell induced by hydrogen peroxide treatment

Odontology ◽  
2021 ◽  
Author(s):  
Sarita Giri ◽  
Ayuko Takada ◽  
Durga Paudel ◽  
Koki Yoshida ◽  
Masae Furukawa ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Epithelial Cell ◽  
Gingival Epithelial Cell ◽  
Hydrogen Peroxide Treatment

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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