Effect of pH and added ammonium hydroxide on in vitro digestibility of roughages of different origin treated with sodium hydroxide and ammonia*

1984 ◽  
Vol 39 (1) ◽  
pp. 11-15 ◽  
Author(s):  
Y. LESHEM ◽  
A. GOLDMAN ◽  
A. YULZARI
Keyword(s):  
Sodium Hydroxide ◽  
Ammonium Hydroxide ◽  
In Vitro Digestibility ◽  
Effect Of Ph ◽  
Different Origin

scholarly journals Nutritional valorisation of cane (Arundo donax) by treatment with sodium hydroxide

2021 ◽  
Vol 51 (4) ◽  
pp. 437-443
Author(s):  
S.M.P. Teixeira ◽  
C.S.A.M. Maduro Dias ◽  
C.F.M. Vouzela ◽  
J.S. Madruga ◽  
A.E.S. Borba
Keyword(s):  
Sodium Hydroxide ◽  
Dry Matter ◽  
Nutritional Value ◽  
Animal Feed ◽  
Arundo Donax ◽  
In Vitro Digestibility ◽  
Acid Detergent Fibre ◽  
Naoh Solution ◽  
Air Circulation

This study evaluated the effects of sodium hydroxide (NaOH) treatment on the nutritional value of Arundo donax (A. donax). Its ultimate goal was to develop an environmentally friendly animal feed alternative that could be produced sustainably while combatting the spread of A. donax. Plants were collected and dried at 60 °C in an oven with controlled air circulation to determine the dry matter (DM) content. The dry plant material was then sprinkled with an NaOH solution of 2%, 4%, 6%, or 8% and placed in leak-proof containers for four weeks. The chemical and in vitro digestibility properties of treated and untreated A. donax samples were analysed in triplicate. The treatment led to significant decreases in neutral detergent fibre (NDF) from 81.06% DM to 69.39% DM, acid detergent fibre (ADF) from 46.99% DM to 43.19% DM, and ether extract (EE) from 2.06% DM to 1.39% DM, in the untreated samples compared with those treated with 8% NaOH, respectively. In addition, DM digestibility increased from 24.61% to 33.78%, ash content from 11.75% DM to 19.92% DM, and ADL from 7.43% M to 15.38% DM. Thus, treatment of A. donax with an 8% solution of NaOH concentration improved its nutritional value.

EFFECT OF PROCESSING METHODS ON THE IN VITRO DIGESTIBILITY OF SODIUM HYDROXIDE TREATED ROUGHAGES

1970 ◽  
Vol 50 (3) ◽  
pp. 657-662 ◽  
Author(s):  
B. G. OLOLADE ◽  
D. N. MOWAT ◽  
J. E. WINCH
Keyword(s):  
Sodium Hydroxide ◽  
Dry Matter ◽  
Water Solubility ◽  
Lignin Content ◽  
Barley Straw ◽  
In Vitro Digestibility ◽  
Acid Detergent Fiber ◽  
Dry Matter Digestibility ◽  
Naoh Treatment

The response of roughages to sodium hydroxide (NaOH) treatment varied with type of roughage. Treatment with NaOH at 23 C for 24 hr increased in vitro dry matter digestibility (IVDMD) by 8,5, 39.6 and 21.5 percentage units for alfalfa stem, barley straw and corn stover, respectively. Increased IVDMD values were brought about, in part, by increased water solubility and decreased cell wall constituents. No significant changes occurred in acid detergent fiber, cellulose or lignin content. The IVDMD values of barley straw ranged from 38% at 0% NaOH to 81% with 12% NaOH at 130 C. At all temperatures and durations, IVDMD increased with increase in concentration of NaOH up to the 8% level. Above 8% NaOH, no further increase in IVDMD occurred. Temperature affected the rate as well as the extent of the response to NaOH. Treatments at 100 C for 90 min resulted in IVDMD values approximately 10 percentage units higher than at 23 C for 24 hr.

In Vitro Digestibility of Barley Straw Treated with Sodium Hydroxide

1972 ◽  
Vol 15 (6) ◽  
pp. 1091-1093 ◽  
Author(s):  
S. L. Phoenix ◽  
W. K. Bilanski ◽  
D. N. Mowat
Keyword(s):  
Sodium Hydroxide ◽  
Barley Straw ◽  
In Vitro Digestibility

scholarly journals Effect of physical form and washing of treated and untreated rice straw with sodium hydroxide upon chemical composition and in vitro digestibility

2008 ◽  
Vol 5 (2) ◽  
pp. 182-187
Author(s):  
Baghdad Science Journal
Keyword(s):  
Organic Matter ◽  
Chemical Composition ◽  
Sodium Hydroxide ◽  
Rice Straw ◽  
Dry Matter ◽  
In Vitro Digestibility ◽  
Physical Form

Hydroxide upon the chemical composition and dry matter(DM) and organic matter(OM) digestibility . Rice straw was treated with 4% sodium hydroxide using 30% of DM basis moisture, and incubated at 40 ºC for 40 days., DM digestibility (DMD) was significantly affected (P

Treatment of barley straw with ligninase enzyme or sodium hydroxide: effect on in vitro digestibility and chemical composition

1989 ◽  
Vol 1989 ◽  
pp. 153-153
Author(s):  
K. A. Khazaal ◽  
E. Owen ◽  
J. M. Palmer ◽  
A. P. Dodson ◽  
P. Harvey
Keyword(s):  
Chemical Composition ◽  
Sodium Hydroxide ◽  
Veratryl Alcohol ◽  
Positive Control ◽  
Barley Straw ◽  
Control Treatment ◽  
In Vitro Digestibility ◽  
Treatment Conditions ◽  
Four Levels

To date, practical methods of improving the digestibility of straw are largely confined to treatment with alkalis (Sundstol and Owen, 1984). Though effective, these chemicals can be hazardous for on-farm use and are potential pollutants. Biological methods of upgrading straw using fungi or enzymes (Zadrazil, 1984) would be less hazardous and more acceptable if practical and economic techniques could be developed. The present experiment examined the potential of ligninase enzyme produced from the fungus Phanerochaete ohrysosporium for upgrading straws. The aim was to define treatment conditions required. Treatment with sodium hydroxide was included as a positive control. Treatment effects were assessed by measuring changes in digestibility in vitro and chemical composition.Seventy two treatments were compared. 10 g samples of milled (1.0 mm) straw were immersed (ambient temperature 15°C) in 100 ml buffered (pH 3.5) solution, with one of four levels of ligninase (zero; 0.1 unit/10 g straw; 1.0 unit; 10 units; one unit of enzyme oxidises 1 μmol veratryl alcohol to veratraldehyde per minute, at pH 2.75), with or without hydrogen peroxide (ligninase depends on H2O2 for its oxidative reaction), veratryl alcohol (used to induce the ligninase production and activity), or both of them.

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