Effects of the addition of waxy and normal hull‐less barley flours on the farinograph and pasting properties of composite flours and on the nutritional value, textural qualities, and in vitro digestibility of resultant breads

2020 ◽  
Vol 85 (10) ◽  
pp. 3141-3149
Author(s):  
Juan Liu ◽  
Qiao Li ◽  
Huisheng Zhai ◽  
Yuhong Zhang ◽  
Xingquan Zeng ◽  
...  
2017 ◽  
Vol 38 (4) ◽  
pp. 2129
Author(s):  
Samantha Mariana Monteiro Sunahara ◽  
Marcela Abbado Neres ◽  
Jaqueline Rocha Wobeto Sarto ◽  
Caroline Daiane Nath ◽  
Kácia Carine Scheidt ◽  
...  

The goal of this study was to assess the dehydration curve and nutritional value of Tifton 85 bermudagrass at two cutting heights from ground level (4 and 8 cm) during 120 days of storage in a closed shed. The dehydration curve was determined using samples from the entire plant at eight different times. The experimental design consisted of randomized blocks with plots subdivided per times and five replicates. The second step consisted of assessing the nutritional value of the stored Tifton 85 bermudagrass in randomized blocks with plots subdivided per times and two treatments per plot: cutting height of four and eight centimeters from the ground, and five different times for the subplots, with five replicates. Dehydration of Tifton 85 bermudagrass at the two heights occurred in 48 hours, considered an ideal time for hay drying. The dry matter content responded quadratically to the time of storage of the two heights, only differing during baling and after 120 days of storage. Crude protein content had a quadratic behavior in the two cutting heights, with the smallest value after 30 days of storage (107.0 g kg-1) and the largest after 90 days (147.8 g kg-1) in the cutting height of eight centimeters. The ether extract exhibited a quadratic behavior in the two cutting heights, only differing after 90 days of storage. The neutral detergent fiber content had linear positive response according to the time of storage, with no difference between the cutting heights. For the neutral detergent fiber content in the two cutting heights, the quadratic regression model was the best fit to the data, differing between the heights after 30 and 60 days of storage. In vitro dry matter digestibility and in vitro cell wall digestibility values of the stored hay were lower than the values obtained at the time of cutting. Cutting performed at four centimeters from the ground was the most suitable for hay production due to higher dry matter production and nutritional value without difference between bailing treatments. Hay storage caused undesirable changes in the nutritional value, especially in fiber content and in vitro digestibility.


Author(s):  
Mingming Qi ◽  
Guangyao Zhang ◽  
Zhishang Ren ◽  
Zhuangzhuang He ◽  
Huihui Peng ◽  
...  

2014 ◽  
Vol 8 (2) ◽  
pp. 92-103 ◽  
Author(s):  
Zhang Yin ◽  
Wang Xinhui ◽  
Wang Wei ◽  
Zhang Jiaming

PLoS ONE ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. e0250351
Author(s):  
Giorgia Meineri ◽  
Alessia Candellone ◽  
Sonia Tassone ◽  
Pier Giorgio Peiretti ◽  
Erica Longato ◽  
...  

Fresh mechanically deboned meat (MDM) is usually claimed as high-quality ingredient on dry pet food recipes and this aspect may positively influence consumer choice. It is important to determine the scientifically sustainability of this claim and to assess the microbiological safety of MDM inclusion in dry pet food. Objectives were: 1) to evaluate the effect of inclusion of MDM in dry dog food on fatty acid profile and in vivo and in vitro digestibility, proposing a new system (DaisyII Incubator) to measure the in vitro digestibility for dogs; 2) to compare palatability of dry dog food containing MDM with dry dog food in which meat by-products (MBP) are the only animal protein sources; 3) to determine, whether or not, the inclusion of that ingredient changes the microbiology and the storage quality. Results indicated that MDM product was characterized by significant higher nutritional value in terms of fatty acids profile, in vitro digestibility (HV-IVD method) and lower palatability than the MBP product. Microbiological risk assessment showed no microbiological hazards for either product. After 6-months storage, the total mesophilic bacterial count ranged between 1.77 and 2.09 log CFU/g feed, while polyamine values were higher in the MDM (0.37 g/kg) than in the MBP (0.27 g/kg). The DaisyII Incubator was found to be a valid instrument for studying in vitro digestibility also for dogs, providing data simply, quickly, with less variability and costs than in vivo trials. In conclusion, MDM inclusion in dry dog food is microbiologically safe and it can improve its nutritional quality, at the expense of a reduced palatability. The higher polyamine levels fount in MDM-enriched petfood after 6-months storage, however, may represent a possible hazard, and further studies are still warranted.


2019 ◽  
Vol 1 (4) ◽  
pp. 475-484 ◽  
Author(s):  
Pfeuti ◽  
Osborne ◽  
Shoveller ◽  
Ignatz ◽  
Bureau

This study describes the process of developing an enzymatic pretreatment to improvethe nutritional value of feather meal (FeM). In a first experiment, a full factorial design was used toexamine the effects of various incubation conditions on the solubilization of nitrogen in FeM. Weincubated FeM for 3 h with various levels of a commercial alkaline serine protease (Savinase®16L), sodium sulphite (Na2SO3), and digestion buffer. A Savinase® 16L level of 3% (%FeM v/w),Na2SO3 level of 3% (%FeM w/w), and digestion buffer level of 500% (%FeM w/w) were identifiedas the optimal conditions. Under these optimal conditions, 45% of the nitrogen in FeM wassolubilized. In a second experiment, we evaluated the effect of more economically sustainableincubation conditions on the in vitro digestibility of protein (pepsin-HCl digestibility andmultistep protein evaluation) in FeM. Two FeMs were incubated with 0.5% Savinase® 16L (%FeMv/w), 2% Na2SO3 (%FeM w/w), and 200% buffer (%FeM w/w) for 24 h. The pretreatment improvedpepsin-HCl digestibility by 7%–16% and the total tract degradable protein content by 14%–50%.Accordingly, this novel pretreatment could be applied in the animal feed industry to improve thenutritional value of FeM.


2016 ◽  
Vol 46 (4) ◽  
pp. 517-528 ◽  
Author(s):  
Marta Aurelia Horianski ◽  
Juan Manuel Peralta ◽  
Luis Alberto Brumovsky

Purpose The purpose of this study was to analyze the influence of epichlorohydrin (ECH) concentration and reaction time on the food-grade resistant starch production and its pasting properties by using native cassava starch of Misiones-Argentina origin. Design/methodology/approach Cassava starch was modified using ECH (0.30 and 0.15 per cent) during 4 or 8 h. Digestibility was evaluated by determining resistant starch as total dietary fiber. Pasting properties and the cross-linking degree were studied using a micro-viscoamylograph (Brabender). Findings Resistant starch content was not influenced by ECH concentration and reaction time. Cross-linking was detected at higher reaction times (8 h) and ECH concentrations (0.30 per cent), where a decrease in viscosity peaks by more than 80 per cent was observed. Both pasting temperature and breakdown were increased, whereas a decrease in retrogradation was detected. Practical implications Starches can be suitable for different food applications. This is because of the ability to modify its pasting properties and the invariability of the in vitro digestibility of cassava starch as a result of using ECH (at concentrations approved by local and regional legislation) and reaction times of 4 and 8 h. Originality/value Information related to the modification of cassava starch using ECH is scarce or not available nowadays in literature.


1999 ◽  
Vol 5 (6) ◽  
pp. 447-461 ◽  
Author(s):  
E. Ferrer ◽  
A. Alegría ◽  
R. Farré ◽  
P. Abellán ◽  
F. Romero

The nutritional value of milk can be negatively affected by thermal treatments. The quality of the proteins can be modified as a consequence of a set of reactions, the most important of which are the interactions between protein and carbohydrates, also known as Maillard reactions. These reactions can also occur when the storage conditions of moisture and temperature are unfavorable. The differ ent thermal treatments involved in processing milk (pasteurization, sterilization, drying, etc.) lead to different steps of the Maillard reaction and therefore to the formation of different compounds that can be useful as chemical markers of milk alteration, or more exactly of protein alteration. Estimating these markers is useful in monitoring the changes, especially those related to proteins, that happen during processing and storage. A review of the literature on the markers used to evaluate the modi fications that milk undergoes during thermal treatment and subsequent storage was carried out, focusing mainly on proteins. Special attention was paid to the analytical aspects. The chemical mark ers taken into account can be classified into two groups according to their relation with the Maillard reaction: 1. Specific markers of Maillard reaction: undesirable compounds (furosine, lisinoalanine, histidinalanine, furfurals, melanoidins); loss of nutrients (available lysine). 2. Non-markers of Maillard reaction: galactose; lactulose; protein-reducing substances; denaturation of protein; in vitro digestibility of proteins; others—pH, viscosity, free fatty acids.


2021 ◽  
Vol 788 (1) ◽  
pp. 012052
Author(s):  
D Muthia ◽  
E B Laconi ◽  
M Ridla ◽  
A Jayanegara ◽  
R Ridwan ◽  
...  

2019 ◽  
Vol 1 (2) ◽  
Author(s):  
Engkus Ainul Yakin ◽  
Sri Sukaryani ◽  
Catur Suci Purwati ◽  
Desi Lestari

The purpose of this study was to determine the effect of the addition of tofu waste in concentrate feed on the nutritional value of ruminant animal feed. Concentrate feed used in this study uses concentrated feed for sheep. Tofu waste was obtained from the place of making tofu in Girimarto sub-district, Wonogiri Regency. The research method used was concentrate feed for sheep given the addition of tofu waste. The study used 3 treatments namely T0 = Concentrate without the addition of tofu waste (control), T1 = Concentrate with 10% tofu waste addition, and T2 = Concentrate with 20% tofu waste addition. The results of the study were analyzed in the laboratory to determine the nutritional value of sheep feed. The study was designed with a completely randomized design. Observation parameters of nutritional value of feed include dry matter, crude protein, crude fiber and in vitro digestibility. The results showed that dry matter content was 78.54 ± 0.23% and crude protein was 16.63 ± 0.46% with the addition of tofu waste until 20% showed a significant difference, whereas crude fiber was 20.37 ± 0.48 % showed no significant difference, while the dry matter digestibility and organic matter digestibility  showed no significant difference. The conclusion of this study was the addition of tofu waste in the concentrate had an effect on the dry matter and crude protein, but not significantly different on crude fiber. The addition of tofu waste to the concentrate did not affect the digestibility of dry matter or the digestibility of organic matter.Key words : Animal feed, concentrate,  in vitro digestibility, tofu waste


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