[PDF] Top 20 Procedimiento de obtención de melaninas y sus aplicaciones

... A Foss NIRSystem 5000(DK-3400 Hillerød, Denmark), with a standard 1.5 m, 210/210 bundle fiber-optic probe, Ref nº R6539-A, was used. The spectral range was set at 1100-2000 nm since above this value (2000nm) significant ... See full document

... Petroleum ether, chloroform and methanol extracts of Ageratina adenophora leaves were screened for assessing bioactive phytochemical constituents. The preliminary phytochemical screening using the standard phytochemical ... See full document

... AO capacity was displayed by ethyl acetate crude extract, which is a strong polar ...and flavonoid content in the plants are a valuable contributor to the AO ...the antioxidant activity index (AAI), ... See full document

... many flavonoid in PD2 had higher antioxidant capacity which had OH in C-3’-C-4’, OH in C-3, oxo function in C-4, double bond at C-2 and C-3, while in LV2 many flavonoid had OH C5, C7, or C3’ ... See full document

... the antioxidant activity of methanolic extracts of propolis samples from different regions of ...Total flavonoid content (TFC) was determined by using aluminum chloride ...of propolis, ... See full document

... content, flavonoid content, ferric reducing capacity, total antioxidant capacity and lipid peroxidation in pancreas were subsequently ...highest flavonoid and phenolic contents ... See full document

... and antioxidant capacity significantly increased; however these findings were partially attributed to decreasing fresh weight with increasing temperature (Remberg ... See full document

... Passiflora edulis Sims (Passifloraceae) is a widely distributed species ranging from tropical and sub-tropical regions of the world. It has been commonly used as a food and possesses various medicinal properties. This ... See full document

... total flavonoid content, antioxidant capacity, anti-inflammatory activity and antibacterial properties of the aqueous seeds extract of a Sri Lankan variety (Red Lady) of papaya ...total ... See full document

... an antioxidant capacity and antimicrobial ...their antioxidant and antimicrobial ...study. Antioxidant activity were assessed by total phenolic content (TPC), total flavonoid content ... See full document

... Ultrasonic assisted extraction was conducted in ultrasonic bath (Bandelin Sonorex with a frequency of 50 kHz). 1 g leave and bulb samples of of the dried plants were weighed and each plant sample and extracted separately ... See full document

... their antioxidant capacity using DPPH free radical scavenging ...phenolics, flavonoid and carotenoid contents were measured using standard ... See full document

... the antioxidant capacity and the levels of enhanced total phenolic (TPC), total flavonoid (TFC) contents and their antioxidant activity in leaves of two maize cultivars Single cross 10 (SC10) ... See full document

... “vigour” in this investigation has a much more pronounced structural component than the physi- ological one within the range of viability which is characteristic of malting barley (above g%3, 98%). The g%3 variable also ... See full document

... of Spectroscopy, to characterize material according to the reflectance, has been used in many areas, such as the food industry, petrochemical industry, and in ...that prediction of residual nitrate or ... See full document

... Protein prediction performance in beef samples increases when the model is built using infrared spectrum data that has been corrected (corrected spectra data) either using the MC or BSC ...protein ... See full document

... Where A is light absorbency, I0 and I are incident light intensity and transmitted light intensity crossing sample respectively, c is glucose concentration of sample, d is optical path, and k is molar absorption ... See full document

... radical scavenging, membrane protection offered by the naringenin could also be due to the glutathione, since it has shown to enhance the level of the oxidized glutathione 72 . The depletion of GSH seems to be a prime ... See full document

... reflectance spectroscopy (NIR), Fourier transform infrared spectroscopy (FT-IR), and Fourier transform Raman spectroscopy (FT-Raman) applied to species identification of lipid were ...and ... See full document

... OSBORNE (1984) investigated NIR for predict- ing SDS sedimentation volume as a measurement of protein quality and concluded that there was no significant correlation with the NIR spectral data when the contribution of ... See full document