ChemInform Abstract: Thermal Retrogression Study of N,N′‐Substituted Thioureas.

Magan, A.; Sondhi, Sham M.; Singh, Pawan; Ralhan, N. K.

doi:10.1002/chin.199142184

Cited by 1 publication

(1 citation statement)

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“…We found that the durum wheat sample is contaminated with four kinds of fungi: Penicillium, Alternaria spp1, Alternaria spp2, Aspergillus. According to the literature, the most common species in wheat are Penicillium and alternaria [48,49,50,51,52]. Penicillium can develop at Aw around 0.7 to 25 ° C, and therefore grow in water-poor foods such as wheat during storage [53].…”

Section: Mold Isolationmentioning

confidence: 99%

Optimization of the extraction parameters of Aloe Vera polyphenols and study of antioxidant and antifungal activities: application to molds isolated from durum wheat

Laib

Boubrik

Barkat

2019

Acta Scientifica Naturalis

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The main objectives of this work are to optimize the extraction parameters, to test the antioxidant activity of Aloe Vera extract and to study the impact of this extract on deteriorating molds of Algerian variety of wheat (CIRTA). The extraction was optimized by central composite design. Determination of the polyphenols, flavonoids, and proanthocyanidins was performed by using colorimetric assays. Identification and quantification of phenolic compounds were performed by RP-HPLC-UV method. The antioxidant activity was tested by three methods: 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,20-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) (ABTS), and CUPRAC (Cupric reducing antioxidant capacity), the antifungal activity of Aloe Vera extract on isolated strains from durum wheat were tested by dilution in a solid medium method. The optimum of total phenolic got was1,044 x 104 µg GAE/g of dry extract. The extract is rich in polyphenols, flavonoids, and proanthocyanidins. The analysis of phenolic compounds of Aloe Vera by RP-HPLC-UV revealed seven phenolic compounds. Strong antioxidant activity was obtained for Aloe Vera extract. Purification and microscopic study of isolated strains gave the possibility of identifying four strains: Alternaria spp1, Alternaria spp2, Penicillium spp, and Aspergillus spp. the antifungal potential of Aloe Veravaries according to the fungal genera and the concentrations of extract used.

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Section: Mold Isolationmentioning

confidence: 99%