Characterization of red wines from South America based on sensory properties and antioxidant activity

Granato, Daniel; Katayama, Flávia Chizuko Uchida; Castro, Inar Alves de

doi:10.1002/jsfa.4602

Cited by 31 publications

(18 citation statements)

References 25 publications

(29 reference statements)

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“…These results do not corroborate the idea of Granato et al (2012) that wines from the same grape variety (Syrah, Malbec and Cabernet Sauvignon) display similar antioxidant activity independently of vintage and country of origin.…”

Section: Antioxidant Capacity and Total Phenolic Contentcontrasting

confidence: 92%

Antioxidant capacity and phenolic composition of red wines from various grape varieties: Specificity of Pinot Noir

Leeuw

Kevers

Pincemaïl³

et al. 2014

Journal of Food Composition and Analysis

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Section: Antioxidant Capacity and Total Phenolic Contentcontrasting

confidence: 92%

Antioxidant capacity and phenolic composition of red wines from various grape varieties: Specificity of Pinot Noir

Leeuw

Kevers

Pincemaïl³

et al. 2014

Journal of Food Composition and Analysis

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“…HCA was applied to auto scaled data using a one-step approach; the Ward's method was used as an amalgam rule and the Euclidean distances and metrics were used to generate a dendrogram of all samples. 18 Comparison between the two suggested clusters was performed by the Student's t-test for independent samples after checking the homogeneity of variances using the F-test.…”

Section: Application Of Chemometricsmentioning

confidence: 99%

Chemical composition of volatiles from male and female specimens of Baccharis trimera collected in two distant regions of southern brazil: a comparative study using chemometrics

Besten¹,

Nunes²,

Wisniewski³

et al. 2013

Quím. Nova

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Recebido em 25/10/12; aceito em 5/5/13; publicado na web em 17/7/13 GC/MS/FID analyses of volatile compounds from cladodes and inflorescences from male and female specimens of Baccharis trimera (Less.) DC. collected in the states of Paraná and Santa Catarina, Brazil, showed that carquejyl acetate was the primary volatile component (38% to 73%), while carquejol and ledol were identified in lower concentrations. Data were subjected to hierarchical cluster analysis and principal component analysis, which confirmed that the chemical compositions of all samples were similar. The results presented here highlight the occurrence of the same chemotype of B. trimera in three southern states of Brazil.

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“…A dendrogram for samples was built to obtain a two-dimensional projection of the similarity of the entire set of samples (Granato, Katayama, & Castro, 2012). LDA is a supervised statistical technique used to find a linear combination of features which characterizes or separates two or more classes of objects.…”

Section: Discussionmentioning

confidence: 99%

Feasibility of different chemometric techniques to differentiate commercial Brazilian sugarcane spirits based on chemical markers

Granato¹,

Oliveira²,

Caruso³

et al. 2014

Food Research International

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Chemometric techniques were used to assess the quality of 51 commercial Brazilian sugarcane spirits (cachaça) based on chemical markers. Benzo(a)pyrene, methanol, 2,3-methyl-1-butanol, acetaldehyde, isobutyl alcohol, npropanol, density, alcoholic strength, and higher alcohols were quantified using chromatographic methods and results were subjected to Principal Component Analysis (PCA), Hierarchical Cluster Analysis (HCA), and Linear Discriminant Analysis (LDA). No significant differences (p ≥ 0.071) were observed in the chemical markers of Brazilian aged and non-aged cachaça samples. Besides non-significant (p = 0.922), the content of benzo(a) pyrene in aged sugarcane spirits was 1.83 times higher than in non-aged ones. Differences in alcoholic strength (p = 0.001) and n-propanol (p = 0.015) were observed among cachaças produced by double distilling, alembic and in stainless steel columns. PCA was not suitable to separate the samples according to the provenance, aging and distilling process, while HCA was effective in separating alembic cachaças produced by from two distinct producing regions. LDA seemed to be very suitable to assess not only the provenance but also the distilling and aging processes that cachaça undergoes, yielding about 91% accuracy to discriminate non-aged from aged cachaça, 81.82% and 86.61% accuracy to discriminate samples from Minas Gerais and São Paulo, respectively.

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Characterization of red wines from South America based on sensory properties and antioxidant activity

Cited by 31 publications

References 25 publications

Antioxidant capacity and phenolic composition of red wines from various grape varieties: Specificity of Pinot Noir

Antioxidant capacity and phenolic composition of red wines from various grape varieties: Specificity of Pinot Noir

Chemical composition of volatiles from male and female specimens of Baccharis trimera collected in two distant regions of southern brazil: a comparative study using chemometrics

Feasibility of different chemometric techniques to differentiate commercial Brazilian sugarcane spirits based on chemical markers

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