scholarly journals Characterization of Chinese Unifloral Honeys Based on Proline and Phenolic Content as Markers of Botanical Origin, Using Multivariate Analysis

Molecules ◽  
2017 ◽  
Vol 22 (5) ◽  
pp. 735 ◽  
Author(s):  
Ya-Qin Wen ◽  
Jinzhen Zhang ◽  
Yi Li ◽  
Lanzhen Chen ◽  
Wen Zhao ◽  
...  
Keyword(s):  
Multivariate Analysis ◽  
Phenolic Content ◽  
Botanical Origin

scholarly journals A New Approach to Characterization of Insulin Derived from Different Species Using 1H-NMR Coupled with Multivariate Analysis

2012 ◽  
Vol 60 (3) ◽  
pp. 320-324 ◽  
Author(s):  
Akiko Ohno ◽  
Toru Kawanishi ◽  
Haruhiro Okuda ◽  
Kiyoshi Fukuhara
Keyword(s):  
Multivariate Analysis ◽  
1H Nmr ◽  
New Approach

Characterization of groundwater quality in Kinmen Island using multivariate analysis and geochemical modelling

2008 ◽  
Vol 22 (3) ◽  
pp. 376-383 ◽  
Author(s):  
Chen-Wuing Liu ◽  
Cheng-Shin Jang ◽  
Chan-Po Chen ◽  
Chun-Nan Lin ◽  
Kuo-Liang Lou
Keyword(s):  
Multivariate Analysis ◽  
Groundwater Quality ◽  
Geochemical Modelling

scholarly journals Multivariate Analysis and Characterization of Flavonoids and Volatile Components of Citrus Fruits Produced in Okinawa

2021 ◽  
Vol 68 (2) ◽  
pp. 45-54
Author(s):  
Kenta Yamamoto ◽  
Ayumi Musou-Yahada ◽  
Ayami Yoshimoto ◽  
Koji Sakamoto ◽  
Naoto Hirose ◽  
...  
Keyword(s):  
Multivariate Analysis ◽  
Volatile Components ◽  
Citrus Fruits

scholarly journals Screening and Characterization of Phenolic Compounds and Their Antioxidant Capacity in Different Fruit Peels

Foods ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1206 ◽  
Author(s):  
Hafiz A. R. Suleria ◽  
Colin J. Barrow ◽  
Frank R. Dunshea
Keyword(s):  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
Phenolic Acids ◽  
Phenolic Content ◽  
Antioxidant Properties ◽  
Antioxidant Potential ◽  
Fruit Peel ◽  
Diverse Range ◽  
Mango Peel

Fruit peels have a diverse range of phytochemicals including carotenoids, vitamins, dietary fibres, and phenolic compounds, some with remarkable antioxidant properties. Nevertheless, the comprehensive screening and characterization of the complex array of phenolic compounds in different fruit peels is limited. This study aimed to determine the polyphenol content and their antioxidant potential in twenty different fruit peel samples in an ethanolic extraction, including their comprehensive characterization and quantification using the LC-MS/MS and HPLC. The obtained results showed that the mango peel exhibited the highest phenolic content for TPC (27.51 ± 0.63 mg GAE/g) and TFC (1.75 ± 0.08 mg QE/g), while the TTC (9.01 ± 0.20 mg CE/g) was slightly higher in the avocado peel than mango peel (8.99 ± 0.13 mg CE/g). In terms of antioxidant potential, the grapefruit peel had the highest radical scavenging capacities for the DPPH (9.17 ± 0.19 mg AAE/g), ABTS (10.79 ± 0.56 mg AAE/g), ferric reducing capacity in FRAP (9.22 ± 0.25 mg AA/g), and total antioxidant capacity, TAC (8.77 ± 0.34 mg AAE/g) compared to other fruit peel samples. The application of LC-ESI-QTOF-MS/MS tentatively identified and characterized a total of 176 phenolics, including phenolic acids (49), flavonoids (86), lignans (11), stilbene (5) and other polyphenols (25) in all twenty peel samples. From HPLC-PDA quantification, the mango peel sample showed significantly higher phenolic content, particularly for phenolic acids (gallic acid, 14.5 ± 0.4 mg/g) and flavonoids (quercetin, 11.9 ± 0.4 mg/g), as compared to other fruit peel samples. These results highlight the importance of fruit peels as a potential source of polyphenols. This study provides supportive information for the utilization of different phenolic rich fruit peels as ingredients in food, feed, and nutraceutical products.

scholarly journals Multivariate Characterization of Biological Efficiency in Dairy Cows in Grazing Systems

2017 ◽  
Vol 6 (4) ◽  
pp. 83
Author(s):  
P. R. Marini ◽  
R. Castro ◽  
E. Frana ◽  
R. J. Di Masso
Keyword(s):  
Multivariate Analysis ◽  
Dairy Cows ◽  
Performance Indicators ◽  
Biological Efficiency ◽  
Reproductive Efficiency ◽  
Retrospective Data ◽  
Productive Performance ◽  
Reproductive Life ◽  
Grazing Systems

Retrospective data was used corresponding to the lactation of 216 first and multi-pregnancy cows, American-Canadian Holstein with registers of their whole productive life, from their entrance to the system till their sale or death, registers were gathered from1992-2012 in the Argentinian Holstein farm located in Casilda, province of Santa –Argentina. During the mentioned time, all the cows were managed in the same dairy premises. The animals were divided into two categories: pure cows (VP,n=88) and cows with breeding registers (VRC,n = 128). The variables under use were: age at first calving, in days (EPP), first calving – conception interval in days (IPP), milk production adapted to 305 lactation days, in litres (PL), the amount of butyric fat produced, in kilograms (GB), the number of calvings registered throughout its reproductive life (NP), milk index in litres (IL) and the fat index in kilograms (IG). There were statistically significant differences as regards the productive characteristics PL and GB. N average, throughout the cycle under study, the VP produced 591 litres of milk and 161 kg of fat more. There were no significant differences when considering the age of first calving or the calving – conception interval. VP cows registered higher IL and IG than VRC cows, with significant differences which favoured the former, in both cases. The four components generated by the multivariate analysis explained important portions of the total variance which lead to consider all of them when interpreting the joint relations between productive performance indicators and reproductive achievement. It is concluded that even though the biotypes under study behave differently, both coincide at the point of stating that those cows which belong to quadrant IV were those which presented the best adaptation to the environment, being the ones who live longer and with an intermediate reproductive efficiency, regardless their biotype.

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