scholarly journals Utilization of Aspergillus niger Phytase Preparation for Hydrolysis of Phytate in Foods

Food Additive ◽  
10.5772/32294 ◽  
2012 ◽  
Author(s):  
Akiko Matsuo ◽  
Kenji Sato
Keyword(s):  
Aspergillus Niger ◽  
Hydrolysis Of ◽  
Aspergillus Niger Phytase

scholarly journals Hydrolysis of Phytic Acid in Brown-Rice Bread by Aspergillus niger Phytase

2005 ◽  
Vol 58 (5) ◽  
pp. 267-272 ◽  
Author(s):  
Akiko Matsuo ◽  
Kenji Sato ◽  
Yasushi Nakamura ◽  
Kozo Ohtsuki
Keyword(s):  
Aspergillus Niger ◽  
Phytic Acid ◽  
Brown Rice ◽  
Hydrolysis Of ◽  
Aspergillus Niger Phytase

scholarly journals Improvement of Enzymatic Saccharification of Cellulose-Containing Raw Materials Using Aspergillus niger

Processes ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 1360
Author(s):  
Ekaterina Budenkova ◽  
Stanislav Sukhikh ◽  
Svetlana Ivanova ◽  
Olga Babich ◽  
Vyacheslav Dolganyuk ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Aspergillus Niger ◽  
Filter Paper ◽  
Raw Materials ◽  
Enzymatic Saccharification ◽  
Wood Chip ◽  
Cellulase Activity ◽  
Wood Chips ◽  
Acid Pretreatment ◽  
Hydrolysis Of

Enzymatic hydrolysis of cellulose-containing raw materials, using Aspergillus niger, were studied. Filter paper, secondary cellulose-containing or starch-containing raw materials, miscanthus cellulose after alkaline or acid pretreatment, and wood chip cellulose, were used as substrates. The study focused on a wild A. niger strain, treated, or not (control), by ultraviolet (UV) irradiations for 45, 60, or 120 min (UV45, UV60, or UV120), or by UV irradiation for 120 min followed by a chemical treatment with NaN3 + ItBr for 30 min or 80 min (UV120 + CH30 or UV120 + CH80). A mixture of all the A. niger strains (MIX) was also tested. A citrate buffer, at 50 mM, wasthe most suitable for enzymatic hydrolysis. As the UV exposure time increased to 2 h, the cellulase activity of the surviving culturewas increased (r = 0.706; p < 0.05). The enzymatic activities of the obtained strains, towards miscanthus cellulose, wood chips, and filter paper, were inferior to those obtained with commercial enzymes (8.6 versus 9.1 IU), in some cases. Under stationary hydrolysis at 37 °C, pH = 4.7, the enzymatic activity of A. niger UV120 + CH30 was 24.9 IU. The enzymatic hydrolysis of secondary raw materials, using treated A. niger strains, was themost effective at 37 °C. Similarly, the most effective treatment of miscanthus cellulose and wood chips occurred at 50 °C. The maximum conversion of cellulose to glucose was observed using miscanthus cellulose (with alkaline pretreatment), and the minimum conversion was observed when using wood chips. The greatest value of cellulase activity was evidenced in the starch-containing raw materials, indicating that A. niger can ferment not only through cellulase activity, but also via an amylolytic one.

Effect of supplementary Aspergillus niger phytase in diets for piglets on their performance and apparent digestibility of phosphorus

1992 ◽  
Vol 55 (3) ◽  
pp. 425-430 ◽  
Author(s):  
S. Beers ◽  
A. W. Jongbloed
Keyword(s):  
Aspergillus Niger ◽  
Average Daily Gain ◽  
Live Weight ◽  
Basal Diet ◽  
Apparent Digestibility ◽  
Feeding Trial ◽  
Daily Food ◽  
Microbial Phytase ◽  
Daily Gain ◽  
Aspergillus Niger Phytase

AbstractA total of 384 piglets from a three-way cross Yorkshire ♂ × (Finnish Landrace ♂ × Dutch Landrace♀) ♀ in the live-weight range of 11 to 25 kg were used in a feeding trial. The effect of supplementary microbial phytase from Aspergillus niger var. Van Tieghem on performance (average daily gain (ADG), average daily food intake (ADFI) and food conversion ratio (FCR)) and apparent digestibility of total phosphorus (P), in comparison with a non-supplemented basal diet or a diet supplemented with one or two levels of monocalcium phosphate (MCP), were studied.The piglets were allotted to 12 blocks. Within each block, four experimental diets were offered ad libitum for a period of 4 weeks i.e. (1) basal diet; (2) basal diet + 1·0 g P, from MCP per kg diet; (3) basal diet + 1·9 g P, from MCP per kg diet; and (4) basal diet + 1450 phytase units (PTU) per kg diet. The diets, with added chromium III oxide as a marker, were cold pelleted without steam at a temperature not above 60°C to avoid a possible inactivation of the phytase. In all diets the ratio calcium: digestible P was intended to be constant.Adding 1450 PTU of Aspergillus niger phytase enhanced the apparent digestibility of P by proportionately 0·216 when compared with diet 1 and by proportionately 0·100 compared with diet 3. In addition, significantly higher ADG and ADFI and better FCR were noted in pigs receiving supplementary microbial phytase than in pigs on any other treatment. The content of digestible P of the diet with added phytase, however, zvas between the two levels of the diets with added MCP.

Evaluation of aspergillus niger phytase and phosphate with weaned piglets

1995 ◽  
Vol 47 (3) ◽  
pp. 219-228 ◽  
Author(s):  
F. Schöne ◽  
H. Lüdke ◽  
U. Kirchheim
Keyword(s):  
Aspergillus Niger ◽  
Weaned Piglets ◽  
Aspergillus Niger Phytase

scholarly journals Immobilization of Aspergillus Niger cellulase onto Lifetech TM carriers and its application in the hydrolysis of sunflower seed meal lignocellulosic fraction

2019 ◽  
Vol 46 (2) ◽  
pp. 161-169
Author(s):  
Marija Ćorović ◽  
Milica Simović ◽  
Ana Milivojević ◽  
Katarina Banjanac ◽  
Katarina Katić ◽  
...  
Keyword(s):  
Aspergillus Niger ◽  
Sunflower Seed ◽  
Seed Meal ◽  
Hydrolysis Of

scholarly journals Production of Xylo-oligosaccharides (XOS) by controlled hydrolysis of Xylan using immobilized Xylanase from Aspergillus niger with improved properties

2018 ◽  
Vol 5 (4) ◽  
Author(s):  
Caio C. Aragon ◽  
Ana I. Ruiz-Matute ◽  
Nieves Corzo ◽  
Rubens Monti ◽  
Jose M. Guisán ◽  
...  
Keyword(s):  
Aspergillus Niger ◽  
Hydrolysis Of ◽  
Controlled Hydrolysis

Hydrolysis of yeast cell-wall glucan by extracellular (1→3)-β-glucanases from Aspergillus niger

1991 ◽  
Vol 13 (1) ◽  
pp. 87-90 ◽  
Author(s):  
V. Kéry ◽  
G. Kogan ◽  
K. Zajacová ◽  
K. Slámová ◽  
L. Masler ◽  
...  
Keyword(s):  
Cell Wall ◽  
Aspergillus Niger ◽  
Yeast Cell ◽  
Yeast Cell Wall ◽  
Hydrolysis Of
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