Phytochemical content and antioxidant properties of diverse varieties of whole barley (Hordeum vulgare L.) grown in Tunisia

Lahouar, Lamia; Arem, Amira El; Ghrairi, Fatma; Chahdoura, Hassiba; Salem, H. Ben; Felah, Mouledi El; Achour, Lotfi

doi:10.1016/j.foodchem.2013.08.102

Cited by 83 publications

(63 citation statements)

References 25 publications

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“…1). Contrarily to the previous findings reported by Lahouar et al [30] describing that Rihane barley had the highest TPC compared to other TBV (Manel, Roho, and Tej), we showed here that Swihli barley (which is studied for the first time) had significantly higher content of phenolic compounds than that of Rihane. This new information suggests that Swihli barley is more preferred than any other TBV for a healthy diet and further industrial applications mainly in the brewing industry regarding the great importance of the presence of higher amounts of antioxidants in preventing oxidation reactions and prolonging the shelf life of the beer.…”

Section: Total Phenolic Contentssupporting

confidence: 88%

“…Similar to our findings, a significant influence of the barley variety on the antioxidant activity when measured by ABTS method was reported in other previous studies. [7,30] FRAP assay Chelating agents may inhibit radical generations by stabilizing transition metals, consequently reducing free radical damage. To better estimate the potential antioxidant activities of the different barley extracts, chelating activity of each extract was evaluated against Fe 2+ .…”

Section: Abts Assaymentioning

confidence: 99%

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Phenolic composition as measured by liquid chromatography/mass spectrometry and biological properties of Tunisian barley

Boubakri

Jdey

Taamalli

et al. 2017

International Journal of Food Properties

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In this work, phenolic composition, antioxidant and antibacterial activities of selected Tunisian barley varieties were studied. Swihli barley exhibited the highest total phenolic content and the strongest antioxidant and antibacterial activities. Liquid chromatography/mass spectrometry analysis revealed significant qualitative and quantitative differences in phenolic composition among the different varieties. Procyanidin B3 and catechin were the most abundant. Pearson's correlation test revealed significant correlations between the antioxidant activities of barley extracts and both hydroferuloyl glucose and catechin-3-glucose.ARTICLE HISTORY

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Section: Total Phenolic Contentssupporting

confidence: 88%

Section: Abts Assaymentioning

confidence: 99%

Phenolic composition as measured by liquid chromatography/mass spectrometry and biological properties of Tunisian barley

Boubakri

Jdey

Taamalli

et al. 2017

International Journal of Food Properties

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show abstract

“…The CTC contents were determined in LS, CR, and the experimental diets, according to the method described by Lahouar et al (2014). A 50 μl aliquot of each extract or Phyto-additives in rabbits standard solution was mixed with 1.5 ml of 4% vanillin methanolic solution and then 750 μl of concentrated HCl was added.…”

Section: Methodsmentioning

confidence: 99%

Effect of purple loosestrife (Lythrum salicaria) diet supplementation in rabbit nutrition on performance, digestibility, health and meat quality

Kovitvadhi

Gasco

Ferrocino

et al. 2016

Animal

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In this study, 160 Hycole weaned rabbits (35 days old) were randomly divided into four groups of 40. The rabbits were studied throughout a 54-day experimentation period in order to determine the impact of dietary supplementation from herbs composed of 0.2%, 0.4% dry ground Lythrum salicaria leaves (LS) and 0.3% Cunirel ® (CR; a commercial herb mixture containing LS as the main ingredient) on performance, digestibility, health and meat quality. The basal diet was given to the control group. No significant differences were found in performance, 10 rabbits from each group were selected for evaluation regarding apparent digestibility. The rabbits fed the control diet and the diet with the low level of LS had a higher level of CP digestibility than did the animals that were supplemented with the high LS levels and CR (85.7% and 84.9% v. 84.0% and 84.0%, respectively; P < 0.05). The ether extract digestibility was lower in the treatment group with 0.4%LS addition and CR as compared with the control group (52.2% and 54.5% v. 62.6%, respectively; P < 0.05). The slaughter process was performed on 89-day-old rabbits to study the carcass characteristics, meat quality, blood parameters, caecal contents and gut histology. The total leukocyte counts in the control animals were lower than they were in the rabbits fed 0.2%, 0.4%LS and CR (4.06 v. 8.25, 8.63 and 8.21 × 10 9 /l, respectively; P < 0.05). For caecal fermentation, the caecal contents of the rabbits fed 0.4% of LS, showed higher concentrations of total volatile fatty acid (VFA; 24.1 v. 18.9 mg/kg dry matter (DM); P < 0.05) and acetic acid (18.3 v. 14.4 mg/kg DM; P < 0.05), but lower ammonia levels (594 v. 892 mg/kg DM; P < 0.05) as compared with the control group. PCR-denaturing gradient gel electrophoresis analyses were performed to evaluate the microbial community in hard faeces, collected at days 35, 42, 49, 56, 70 and 89, whereas the caecal contents were taken after slaughtering. The results demonstrated that between the treatment groups, the similarity of the microbial communities was higher as compared with the control group. Moreover, only age was shown to influence microbiota diversity. In conclusion, the results of this study indicated that supplementation of LS in rabbit diets leads to an increase in the total white blood cells, total VFA and acetic acid concentration, and a decrease in the ammonia levels, as well as the digestibility when CR and high level of LS were supplemented, without causing any adverse effects on other parameters.

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“…Alternatively, the FRAP assay should be used being the only one that directly measures antioxidants or reductants in a sample [33].…”

Section: Discussionmentioning

confidence: 99%

A comparison study of the nutritional, mineral and volatile compositions of three dry forms of ginger rhizomes, and antioxidant properties of their ethanolic and aqueous extracts

Jelled¹,

Chahdoura²,

Flamini³

et al. 2017

JCLM

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Phytochemical content and antioxidant properties of diverse varieties of whole barley (Hordeum vulgare L.) grown in Tunisia

Cited by 83 publications

References 25 publications

Phenolic composition as measured by liquid chromatography/mass spectrometry and biological properties of Tunisian barley

Phenolic composition as measured by liquid chromatography/mass spectrometry and biological properties of Tunisian barley

Effect of purple loosestrife (Lythrum salicaria) diet supplementation in rabbit nutrition on performance, digestibility, health and meat quality

A comparison study of the nutritional, mineral and volatile compositions of three dry forms of ginger rhizomes, and antioxidant properties of their ethanolic and aqueous extracts

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