scholarly journals Fatty Acids-Based Quality Index to Differentiate Worldwide Commercial Pistachio Cultivars

Molecules ◽  
2018 ◽  
Vol 24 (1) ◽  
pp. 58 ◽  
Author(s):  
Mahnaz Esteki ◽  
Parvin Ahmadi ◽  
Yvan Vander Heyden ◽  
Jesus Simal-Gandara
Keyword(s):  
Fatty Acid ◽  
Quality Index ◽  
Predictive Power ◽  
Principal Component ◽  
Fatty Acid Profiles ◽  
Chromatographic Fingerprint ◽  
Linear Discriminant ◽  
Fatty Acid Data ◽  
Percent Accuracy ◽  
Almost All

The fatty acid profiles of five main commercial pistachio cultivars, including Ahmad-Aghaei, Akbari, Chrok, Kalle-Ghouchi, and Ohadi, were determined by gas chromatography: palmitic (C16:0), palmitoleic (C16:1), stearic (C18:0), oleic (C18:1), linoleic (C18:2), linolenic (C18:3), arachidic (C20:0), and gondoic (C20:1) acid. Based on the oleic to linoleic acid (O/L) ratio, a quality index was determined for these five cultivars: Ohadi (2.40) < Ahmad-Aghaei (2.60) < Kale-Ghouchi (2.94) < Chrok (3.05) < Akbari (3.66). Principal component analysis (PCA) of the fatty acid data yielded three significant PCs, which together account for 80.0% of the total variance in the dataset. A linear discriminant analysis (LDA) model that was evaluated with cross-validation correctly classified almost all of the samples: the average percent accuracy for the prediction set was 98.0%. The high predictive power for the prediction set shows the ability to indicate the cultivar of an unknown sample based on its fatty acid chromatographic fingerprint.

scholarly journals Fatty Acids-Based Quality Index to Differentiate Worldwide Commercial Pistachio Cultivars

2018 ◽  
Author(s):  
Mahnaz Esteki ◽  
Parvin Ahmadi ◽  
Yvan Vander Heyden ◽  
Jesus Simal-Gandara
Keyword(s):  
Fatty Acid ◽  
Quality Index ◽  
Predictive Power ◽  
Principal Component ◽  
Chromatographic Fingerprint ◽  
Data Set ◽  
Linear Discriminant ◽  
Fatty Acid Data ◽  
Percent Accuracy ◽  
Almost All

The fatty-acid profiles of five main commercial pistachio cultivars, including Ahmad-Aghaei, Akbari, Chrok, Kalle-Ghouchi and Ohadi, were determined by gas chromatography: palmitic (C16:0), palmitoleic (C16:1), stearic (C18:0), oleic (C18:1), linoleic (C18:2), linolenic (C18:3) arachidic (C20:0) and gondoic (C20:1) acid. Based on the oleic to linoleic acid (O/L) ratio, a quality index was determined for these five cultivars: Ohadi (2.40) &lt; Ahmad-Aghaei (2.60) &lt; Kale-Ghouchi (2.94) &lt; Chrok (3.05) &lt; Akbari (3.66). Principal component analysis (PCA) of the fatty-acid data yielded three significant PCs, which together account for 80.0% of the total variance in the data set. A linear discriminant analysis (LDA) model evaluated with cross validation correctly classified almost all samples: the average percent accuracy for the prediction set was 98.0%. The high predictive power for the prediction set shows the ability to indicate the cultivar of an unknown sample based on its fatty-acid chromatographic fingerprint.

scholarly journals Chemometric Approach to Fatty Acid Profiles in Soybean Cultivars by Principal Component Analysis (PCA)

2012 ◽  
Vol 17 (3) ◽  
pp. 184-191 ◽  
Author(s):  
Eui-Cheol Shin ◽  
Chung-Eun Hwang ◽  
Byong-Won Lee ◽  
Hyun-Tae Kim ◽  
Jong-Min Ko ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Fatty Acid ◽  
Principal Component ◽  
Component Analysis ◽  
Fatty Acid Profiles ◽  
Soybean Cultivars ◽  
Chemometric Approach

scholarly journals Polymorphic effects of FABP4 and SCD genes on intramuscular fatty acid profiles in longissimus muscle from two cattle breeds

2015 ◽  
Vol 84 (4) ◽  
pp. 327-336 ◽  
Author(s):  
Radka Dujková ◽  
Yuvaraj Ranganathan ◽  
Aleš Dufek ◽  
Jan Macák ◽  
Jiří Bezdíček
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Principal Component ◽  
Potential Candidate ◽  
Longissimus Muscle ◽  
Fatty Acid Profiles ◽  
Total N ◽  
Fatty Acid Binding ◽  
Cattle Breeds

The aim of this study was to evaluate the polymorphic effects of two single nucleotide polymorphisms (SNPs) of fatty acid binding protein (FABP4) and stearoyl-CoA desaturase (SCD) genes on intramuscular fatty acid profiles in the longissimus muscle in two cattle breeds. Two previously reported SNPs of bovine FABP4 (7516G>C) and SCD (878C>T) were in turn assessed for their associations with intramuscular fatty acid profiles from the upper sirloin cuts of Aberdeen Angus and Blonde d’Aquitaine cattle. In total, 33 animals were genotyped using PCR-RFLP. Intramuscular fatty acid composition was evaluated using two complementary statistical approaches: a classical univariate regression model and a multivariate approach using a combination of Principal Component Analysis and Random Forests. Significant effect of FABP4 SNP genotypes was found for several fatty acids including C15:0, C17:0, C18:0, C14:1, C17:1, C18:2n6, C20:4n6, C20:5n3, C22:5n3, total n-3, n-6 and total SFA (P < 0.05). These results suggest that FABP4 is a potential candidate gene affecting fatty acid composition in beef cattle.

scholarly journals Distinguishing Coconut Oil from Coconut Paring Oil using Principle Component Analysis of Fatty Acid Data

CORD ◽  
2012 ◽  
Vol 28 (1) ◽  
pp. 5
Author(s):  
J.M.N. Marikkar
Keyword(s):  
Principal Component Analysis ◽  
Fatty Acid ◽  
Iodine Value ◽  
Coconut Oil ◽  
Principal Component ◽  
Component Analysis ◽  
Pca Analysis ◽  
Fatty Acid Data ◽  
Influencing Parameters ◽  
Iodine Values

A study was carried out to distinguish coconut oil from coconut pairing oil by the application of principal component analysis (PCA) to fatty acid compositional and iodine value data. Five samples of ordinary coconut oil extracted from five different batches of copra and five samples of coconut pairing oil obtained from five batches of dried coconut pairings were employed. Fatty acid composition and iodine values of oil samples were determined individually and the data were analyzed statistically. PCA analysis showed that lauric and oleic acid contents and iodine value data are the most influencing parameters to discriminate coconut oil from coconut pairing oil. Hence, the application of PCA to fatty acid compositional and iodine value data was successful in distinguishing coconut oil from coconut pairing oil.

scholarly journals Indication Géographique De L’huile De Palme De “Man’’ (District Des Montagnes-Côte d’Ivoire) : Une Analyse Comparative Des Propriétés PhysicoChimiques Et Profils En Acides Gras De Quelques Huiles De Palme Rouge Artisanales Ivoiriennes

2017 ◽  
Vol 13 (18) ◽  
pp. 373
Author(s):  
N’Goran David Vincent Kouakou ◽  
Kouakou Amos Kouassi ◽  
Cho Euphrasie Monique Angbo-Kouakou ◽  
Diane Yéléhi Ahongo ◽  
Pohé Jean ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Principal Component ◽  
Geographical Indication ◽  
Fatty Acid Profiles ◽  
High Iodine ◽  
Know How ◽  
Local Product ◽  
International Reputation ◽  
Analyse Comparative ◽  
De Man

Artisanal crude palm oil (ACPO) of “Man’’ (District des Montagnes, Ivory Coast) enjoys a national and international reputation for quality among consumers. In order to record this local product as a geographical indication product, a study aimed to compare the physicochemical parameters and fatty acid profiles of some ACPO samples from the “Dura” variety collected in the districts of Lagunes, Sassandra-Marahoué, Bas-Sassandra and Montagnes, was conducted. It shows that the samples collected in the District des Montagnes have a low density (0.949±0.018 g/ml), a high iodine value (63.9±0.5 g of iodine/100 g of fat) and a low peroxide value (1.2±0.2 meqO 2 / kg of fat), a slightly high pH (3.1±0.3) than those in other districts. Furthermore, these samples exhibit the lowest levels of saturated fatty acid (34.8%). The principal component analysis performed on all parameters studied, shows that the samples are of ACPO from "Man" have a more uniform profile, a symbol of a common ancestral know-how and that its deserves a Geographical Indication

scholarly journals Fatty acid profile as a tool to trace the origin of beef in pasture- and grain-fed young bulls of Retinta breed

2018 ◽  
Vol 15 (4) ◽  
pp. e0607 ◽  
Author(s):  
Alberto Horcada ◽  
Adoración López ◽  
Oliva Polvillo ◽  
Rafael Pino ◽  
Dolores Cubiles-de-la-Vega ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Dry Matter ◽  
Intramuscular Fat ◽  
Fatty Acid Profiles ◽  
Linear Discriminant ◽  
Combined Use ◽  
Feeding Regimes ◽  
Farm Buildings

This research explores the possibility of using the fatty acid profiles of intramuscular fat to authenticate the origin of Retinta breed meat according to different feeding regimes based on the combined use of concentrate and grass or forage (GP, grass pasture; MC, medium concentrate; HC, high concentrate). Young bulls from GP (n=30) were reared on grass pasture and supplement with concentrate in controlled feeders; MC (n=30) and HC (n=15) were reared in farm buildings using 40 and 80% concentrate of total dry matter from diet, respectively. The stepclass function in R was used to perform a stepwise linear discriminant analysis including thirty fatty acids from intramuscular fat. Two fatty acids, 9c18:1 and 22:5 n-3 were selected as discriminators of the meat origin. Meat from the GP and MC was characterized by higher 22:5 n-3 (p<0.05), while HC meat showed higher 9c18:1 (p<0.05). The use of 9c18:1 and 22:5 n-3 fatty acids from intramuscular fat resulted in a correct assignation of 100% of beef samples to each of the feeding regimes. Therefore, in addition to serving as an effective tool for discriminating between feeding regimes in the origin of the beef, the fatty acid profile of intramuscular fat could help companies to check the authenticity of the meat origin.

Quantitative relationships among thaxtomin A production, potato scab severity, and fatty acid composition in Streptomyces

1998 ◽  
Vol 44 (8) ◽  
pp. 768-776 ◽  
Author(s):  
Linda L Kinkel ◽  
John H Bowers ◽  
Kyoko Shimizu ◽  
Eric C Neeno-Eckwall ◽  
Janet L Schottel
Keyword(s):  
Fatty Acid ◽  
Common Scab ◽  
Potato Scab ◽  
Quantitative Information ◽  
Fatty Acid Profiles ◽  
Field Isolates ◽  
Thaxtomin A ◽  
Streptomyces Spp ◽  
Potato Common Scab ◽  
Fatty Acid Data

Thaxtomin A production in culture, potato common scab severity (percentage of tuber surface infected or number of lesions per tuber), and fatty acid profiles were determined for 78 Streptomyces isolates. Only pathogenic Streptomyces spp. (n = 17) produced thaxtomin A in culture. Thaxtomin A production in culture (µg/mL) was significantly positively correlated with the percentage of tuber surface infected (R = 0.60; p = 0.017) but not with the number of lesions per tuber (R = 0.37; p = 0.17). An increase of 1 µg/mL in thaxtomin A production corresponded to an 11% increase in disease severity (percentage of tuber surface infected). The data indicate that quantitative information on the ability of a particular pathogen isolate or population to produce thaxtomin A may be critical to understanding and predicting the disease potential of that population. Using cluster analysis of fatty acid data, 94% of 67 unknown field isolates grouped with other field isolates having the same pathogenicity (plus or minus).Key words: thaxtomin A, phytotoxin, potato scab.

Distinguishing between Different Populations of Harp Seal (Phoca groenlandica) by Chemometry of the Fatty Acid Profiles in the Jaw Bone

1993 ◽  
Vol 50 (7) ◽  
pp. 1400-1404 ◽  
Author(s):  
Otto Grahl-Nielsen ◽  
Olav Mjaavatten ◽  
Einar Tvedt
Keyword(s):  
Fatty Acid ◽  
Barents Sea ◽  
Principal Component ◽  
Eye Lens ◽  
Fatty Acid Profiles ◽  
Phoca Groenlandica ◽  
The Barents Sea ◽  
Different Populations ◽  
The Difference ◽  
Two Populations

The relative amounts of various fatty acids of jawbone and eye lens were determined in harp seals (Phoca groenlandica) caught in the Greenland Sea and in the Barents Sea. The two tissues had distinctly different profiles. The fatty acid profile in the lens tissue changed with age. Principal component analysis of the data showed that the profiles in the jawbone were different in seals from the two populations, while the difference was much less prominent in the case of the eye lens. Using the jawbone profiles from the western and eastern seals as reference, it was shown that seven seals, caught in west coast seine nets during the large invasion of harp seals along the Norwegian coast in the winter of 1986–87, had come from the eastern population.

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