J Agric Food Chem
State Key Laboratory of Microbial Technology, Shandong University, 72 Binhai Road, 266237 Qingdao, China.
Published: March 2021
Enzymatic conversion of corn fiber to fermentable sugars is beneficial to improving the economic efficiency of corn processing. In this work, the filamentous fungus was found to secrete enzymes for efficient saccharification of un-pretreated corn fiber. Separate engineering of transcriptional activators ClrB, XlnR, and AraR led to enhanced production of different sets of lignocellulolytic enzymes. Particularly, the enzymes produced by XlnR- and AraR-engineered strains showed a synergistic effect in corn fiber saccharification. Combinatorial engineering of all three activators generated a strain MCAX with 3.1- to 51.0-fold increases in lignocellulolytic enzyme production compared with the parent strain. In addition, the enzymes of strain MCAX released significantly more fermentable sugars from corn fiber than those of the parent strain at the same protein dosage. The results suggest that this strain has potential for on-site production of enzymes for corn fiber saccharification.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1021/acs.jafc.0c07659 | DOI Listing |
J Anim Sci
January 2025
Department of Animal Science, South Dakota State University, Brookings, SD, 57007, USA.
The utilization of exogenous fiber-degrading enzymes in commercial swine diets is a strategy to increase the nutrient and energy density of poorly digestible ingredients. In a prior set of studies, dietary multienzyme blend (MEblend) supplementation increased the apparent total tract digestibility (ATTD) of nutrients, non-starch polysaccharides, and energy in complete high-fibrous gestation diets by 6% when fed to gestating sows. The current study aimed to determine the effects of MEblend (containing xylanase, β-glucanase, cellulase, amylase, protease, pectinase, and invertase activities) supplementation on ATTD of energy and nutrients of individual feedstuffs commonly used in gestating sow diets across major pork-producing regions worldwide, which differ in their fibrous components.
View Article and Find Full Text PDFMicroorganisms
December 2024
College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China.
This investigation aimed to assess the effect of additives on the aerobic stability, fermentation profile, and chemical composition of high-moisture corn grain silage. The corn grain was milled and divided this into four distinct treatment groups: , propionic acid, , and no additive (control). The capacity of the silos was 1 L and density was 1000 kg/m.
View Article and Find Full Text PDFAnimals (Basel)
January 2025
State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
This study aimed to improve palm kernel cake by reducing anti-nutritional factors with enzymes and enhancing its nutritional value through microbial fermentation. It also examined the effects of these treatments on palm kernel cake in broiler chicken diets. Palm kernel cake was hydrolyzed using xylanase and mannanase under various conditions.
View Article and Find Full Text PDFPoult Sci
January 2025
College of Animal Science, Guangdong Provincial Key Laboratory of Animal Nutrition Control, Guangdong Laboratory for Lingnan Modern Agriculture, State Key Laboratory of Swine and Poultry Breeding Industry, South China Agricultural University, Guangzhou 510642, China. Electronic address:
This study aimed to investigate the effects of dietary supplements of fermented mixed ingredient product (FMIP) on the growth performance, intestinal health, and immune performance of layer hens during the brooding period. Four hundred eighty healthy one-day-old layer chicks were randomly divided into four groups (six replicates/group, twenty hens/replicate) and were fed with different experimental diets for eight weeks (from day 1 to day 56): (1) Corn-soybean-base diet (CON); (2) Chlortetracycline group (CTC; CON diet supplemented with 0.5g/kg chlortetracycline); (3) 4 % fermented mixed ingredient product (4 % FMIP); (4) 8 % fermented mixed ingredient product (8 % FMIP).
View Article and Find Full Text PDFMeat Sci
January 2025
Ghent University, Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Sciences and Aquatic Ecology, Ghent, Belgium. Electronic address:
This study evaluated the effects of a fibre- and fat-rich by-products-based diet and the intramuscular fat (IMF) content on volatile compounds in pork. Meat samples were collected from sixteen gilts included in a feeding trial. Half of the animals were fed a conventional diet based on wheat, maize, barley and soybean meal, whereas the other half were fed a by-products-based diet that contained corn germ meal, malt sprouts, crispbread meal and proticorn, but no cereals or soya.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!
© LitMetric 2025. All rights reserved.