Fermentation profile and hygienic quality of rehydrated corn grains treated with condensed tannins from quebracho plant extract

The antimicrobial effects of diverse tannin-containing plants, particularly condensed tannins (CTs) produced from various plants, are the subject of this study. CT components can be determined using CT-specific procedures such the HCl-Butanol Acetone assay, Thiolysis reaction, and HPLC/MS analysis. These methods indicate CT contents, including mean degree of polymerization, the procyanidins and prodelphinidins ratio (PC/PD%), the isomers of trans- and cis-, and CT concentration. Tannin-containing plants possess antibacterial action, which can be attributed to their protein linkage technique, and tannin-type variations, particularly CTs extract and their PC/PD%. The effects of CT components on the development of Gram-positive and Gram-negative bacteria have been documented for their relative PC/PD%; this is regarded to be a key predictor of tannin characteristics in terms of antimicrobials. In conclusion, tannins, more specific CT compositions, have significant impacts on in vivo trials of animal productions and utilization of metabolites and fermentation in vitro experiments. These findings need further investigations to fully understand how CT-types act on animal feeding in terms of enhanced nutritional quality of animal diets, which may have implications for human and animal health.

Download Full-text

Changes in Hygienic Quality of Vacuum-packed Pork during Storage

Acta Veterinaria Brno ◽

10.2754/avb200271020255 ◽

2002 ◽

Vol 71 (2) ◽

pp. 255-262 ◽

Cited By ~ 4

Author(s):

E. Nápravníková ◽

L. Vorlová ◽

L. Malota

Keyword(s):

Hygienic Quality

Download Full-text

The effect of gamma irradiation on the stability and hygienic quality of semi-dried Pacific saury (Cololabis seira) flesh

Radiation Physics and Chemistry ◽

10.1016/s0969-806x(01)00675-2 ◽

2002 ◽

Vol 64 (4) ◽

pp. 309-315 ◽

Cited By ~ 16

Author(s):

Ju.-Woon Lee ◽

Kyung.-Hwan Cho ◽

Hong.-Sun Yook ◽

Cheorun Jo ◽

Dong.-Ho Kim ◽

...

Keyword(s):

Gamma Irradiation ◽

Pacific Saury ◽

Hygienic Quality ◽

The Stability

Download Full-text

Composition and Hygienic Quality of Sudanese White Soft Cheese in Khartoum North Markets (Sudan)*

International Journal of Dairy Science ◽

10.3923/ijds.2010.177.184 ◽

2010 ◽

Vol 5 (3) ◽

pp. 177-184

Author(s):

Lemya . ◽

M. Warsama ◽

Ibtisam E.M. El Zubeir ◽

O.A.O. El Owni

Keyword(s):

Hygienic Quality ◽

Soft Cheese

Download Full-text

Composition and Hygienic Quality of Sudanese White Soft Cheese in Khartoum North Markets (Sudan)

International Journal of Dairy Science ◽

10.3923/ijds.2006.36.43 ◽

2005 ◽

Vol 1 (1) ◽

pp. 36-43 ◽

Cited By ~ 8

Author(s):

Lemya . ◽

M. Warsama . ◽

Ibtisam E.M. El Zube . ◽

O.A.O. El Owni .

Keyword(s):

Hygienic Quality ◽

Soft Cheese

Download Full-text

Gymnorhynchus gigas in Lepidopus caudatus (Actinopterygii: Perciformes: Trichiuridae): prevalence and related effects on fish quality

Czech Journal of Food Sciences ◽

10.17221/330/2013-cjfs ◽

2014 ◽

Vol 32 (No. 4) ◽

pp. 320-325 ◽

Cited By ~ 5

Author(s):

F. Giarratana ◽

D. Muscolino ◽

Ch. Beninati ◽

G. Ziino ◽

A. Giuffrida ◽

...

Keyword(s):

Mediterranean Sea ◽

Total Volatile ◽

Fish Quality ◽

Total Volatile Basic Nitrogen ◽

Basic Nitrogen ◽

Hygienic Quality ◽

High Prevalence ◽

The Mediterranean

We evaluated the effects of Gymnorhynchus gigas on the freshness and hygienic quality of Lepidopus caudatus. Total Volatile Basic Nitrogen (TVB-N), Trimethylamine Nitrogen (TMA-N), as well as Specific Spoilage Organisms (SSOs) are the most important freshness indicators in fish. Our study was carried-out on 65 specimens of L. caudatus kept in ice and stored at 2°C for different period of time. The microbiological charge of SSOs recovered on a portion of parasitised muscles (MP) was compared with those recovered on portions of parasite-free muscles (M). The contents of TVB-N and TMA-N on MP, M, and G. gigas larva/ae were measured using the Conway microdiffusion method. High prevalence (72.31%) of G. gigas in the specimens of L. caudatus from the Mediterranean sea was observed. No statistically significant differences (P < 0.05) between M and MP were found during storage. However, massive infestation of G. gigas on the muscle of the silver scabbardfish could negatively influence TVB-N values, without compromising the sensorial characteristic of fish.

Download Full-text

Clarification of the Algerian grape juice and their effects on the juice quality

Bulletin of the Chemical Society of Ethiopia ◽

10.4314/bcse.v34i1.1 ◽

2020 ◽

Vol 34 (1) ◽

pp. 1-11

Author(s):

Soraya Mazrou ◽

Mohammed Messaoudi ◽

Samir Begaa ◽

Christophe Innocent ◽

Djamaleddine Akretche

Keyword(s):

Condensed Tannins ◽

Microbiological Quality ◽

Grape Juice ◽

Juice Quality ◽

Microbial Quality ◽

Total Polyphenol ◽

Accelerated Stability ◽

Nutritional Qualities ◽

And Storage

The aim of this study was to find a good clarification method to eliminate the substances in Algerian grape juice and study the effects of the clarification agents on juice quality. The clarified grape juice was subjected to different treatments, namely bentonite, gelatin, combination of gelatin and bentonite, then stored for 4 weeks. The effects of fining treatment by determining the critical micillary concentration of each agent used accelerated stability test on turbidity, tannin contents (ethanol index, condensed tannins, total polyphenol and anthocyanins) and microbiological quality of clarified grape juice were evaluated during storage. Fining treatment and storage had a significant (p < 0.05) effect on turbidity, tannins, total polyphenol, condensed tannins and anthocyanins. However, a better percentage elimination was noted for freshly squeezed grape juice with a combination of gelatin and bentonite corresponding to a turbidity of 6.5 NTU. The clarifiers separately gave lower removal rates than average, up to 83% of tannins present in the freshly squeezed juice has been eliminated using the bentonite. The results obtained are very satisfactory since we were able to obtain a clear juice of good microbial quality while ensuring the preservation of the organoleptic and nutritional qualities during the treatment and the storage of the juice. Bull. Chem. Soc. Ethiop. 2020, 34(1), 1-11. DOI: https://dx.doi.org/10.4314/bcse.v34i1.1

Download Full-text

Production, fermentation profile, and nutritional quality of silage from corn and soybean intercropping

Semina Ciências Agrárias ◽

10.5433/1679-0359.2019v40n6supl2p3143 ◽

2019 ◽

Vol 40 (6Supl2) ◽

pp. 3143

Author(s):

Karolyna Oliveira Marques ◽

Adriano Jakelaitis ◽

Kátia Cylene Guimarães ◽

Leandro Spíndola Pereira ◽

Isabella Sichierski Cardoso ◽

...

Keyword(s):

Spatial Arrangement ◽

Additional Treatment ◽

Soybean Variety ◽

Silage Fermentation ◽

Fermentation Profile ◽

Silage Quality ◽

Silage Production ◽

Reducing Costs ◽

Energy Supplements

Forage seasonality makes farmers use conservation practices. Mixing corn silage and legumes can enhance silage quality and hence animal productivity. Therefore, this study aimed to evaluate yield and quality of silages from intercropping between genetically modified corn and soybean for glyphosate tolerance (RR - Roundup Ready) as a function of plant spatial arrangement, soybean variety, and sowing fertilization methods. Two intercropping arrangements of RR corn and RR soybeans were tested: alternate single rows of corn and soybeans and double corn rows for each soybean row. Treatments were randomized blocks with four replications, arranged in a 2x2+1 factorial scheme. The first factor was sowing fertilization method (2): only in corn rows or in total area. The second factor was soybean variety (2): medium- and late-cycle genotypes, and an additional treatment of corn monoculture. After harvest, forage material was analyzed for agronomic characteristics and then ensiled for 60 days. Thereafter, bromatological composition, fermentation profile, and losses were analyzed during silage fermentation process. No differences were observed among treatments for total silage production. Overall, silage from intercropping treatments showed higher levels of hemicellulose, total digestible nutrients, crude protein, and ether extract, thus improving silage quality. However, lower contents of dry matter, acid detergent fiber, and cellulose were also observed in silage from intercropped treatments. In short, adding soybeans to silage can improve final roughage, reducing costs of protein and energy supplements.

Download Full-text