scholarly journals A Review on Anthocyanin Pigments with respect to its Nutraceutical Properties

2020 ◽  
Vol 6 (12) ◽  
pp. 54-60
Author(s):  
Srijeeta Saha Shairee Ganguly and Dolanchapa Sikdar
Keyword(s):  
High Performance ◽  
Nucleophilic Attack ◽  
Total Anthocyanin ◽  
Factors Affecting ◽  
Spectrophotometric Methods ◽  
The Media ◽  
Anthocyanin Stability ◽  
Anthocyanin Pigments ◽  
Self Association ◽  
Processing And Storage

Anthocyanin pigments are readily degraded during processing and storage of foodstuffs that can have a dramatic impact on color quality and may also affect the nutritional properties. Total anthocyanin pigment content and indices for polymeric color and browning are easily measured with simple spectrophotometric methods. Once individual pigments are identified, their changes can be monitored by high-performance liquid chromatography (HPLC). The edible fruits of 12 plants were extracted in methanol and subjected to solvent–solvent partitioning to yield three fractions, hexane, ethyl acetate, and aqueous. A number of factors affecting anthocyanin stability and color are discussed in this review. Anthocyanins are probably the most spectacular of plant pigments since they are responsible for most of the red, purple and blue pigmentation of flowers, hits and vegetables. However, because of their highly reactive nature, anthocyanins readily degrade, or react with other constituents in the media, to form colorless or brown colored compounds. The presence of an oxonium ion adjacent to carbon 2 makes the anthocyanins particularly susceptible to nucleophilic attack by such compounds as sulfur dioxide, ascorbic acid, hydrogen peroxide and even water. Loss of anthocyanin pigmentation also occurs in the presence of oxygen and various enzymes, and as a result of high temperature processing. Certain degree of pigment stabilization may be conferred by acylation with various organic acids, co pigmentation, self-association and/or metal chelation. In addition, pH has a marked effect on anthocyanin stability, and on the color of media containing these pigments. A number of anthocyanin-rich sources have been investigated for their potential as commercial pigment extracts. Although their application is primarily limited to acidic media, continued research on the chemistry of anthocyanins may lead to application and stabilization of these pigments in a wider variety of food products.

Achievement of anthocyanins production in grape leaves of Carignan (Vitis vinifera L.) exits of one eye cuttings cultivated in laboratory

OENO One ◽  
1999 ◽  
Vol 33 (1) ◽  
pp. 9
Author(s):  
Béchir Ezzili ◽  
Gérard Darné ◽  
M. Bejaoui
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Leaf Surface ◽  
Leaf Growth ◽  
The Other ◽  
Total Darkness ◽  
Free Form ◽  
Total Anthocyanin ◽  
Anthocyanin Pigments

<p style="text-align: justify;">Under some laboratory conditions, it is possible to obtain a production of anthocyanins by the leaves of grape cuttings.</p><p style="text-align: justify;">The objective of this work consists in the comparison between contents in anthocyanin pigments of leaves of stemming Carignan of one eye cuttings cultivated in various conditions of laboratory with those of leaves of the same cultivated grape to the vineyard in the area of El Khenguet UCP Sidi Slama (Tunisia).</p><p style="text-align: justify;">We have measured the growth in length and in diameter of stems of the cuttings processed 30 days in total darkness and compared to cuttings witnesses raised in greenhouse. The same comparison has been undertaken on cuttings having undergone 30 days stay in total darkness and 21 days of maintenance in greenhouse with witness that has undergone 51 days in greenhouse.</p><p style="text-align: justify;">The total darkness during 30 days favors the growth in length and in diameter of shoots, reduced the leaf surface, and blocks the synthesis of anthocyanin as compared to the photoperiod of 12 hours of darkness/12 hours of light. The total darkness during 30 steady days by a photoperiod of 12 hours light/12 hours darkness during 21 days induces a resumption of the leaf growth and a synthesis of anthocyanins in leaves and in stems.</p><p style="text-align: justify;">The analysis of the anthocyanin, undertaken by High Performance Liquid Chromatography (HPLC) allowed to detect the five anthocyanin 3-monoglucosides following: Delphinidin MG3 - Cyanidin MG3 - Petunidin MG3 - Pæonidin MG3 and Malvidin MG3.</p><p style="text-align: justify;">They are in the free form and in the combined form, esterified by acetic, cafeic and coumaric acids in stemming leaves of the vineyard as well as in those developed in the laboratory. The combined anthocyanins are better represented in the cutting cultivated in laboratory.</p><p style="text-align: justify;">The Cyanidin 3-monoglucoside, the Pæonidin 3-monoglucoside and the Malvidin 3-monoglucoside present a maximal content at the period of the fall of leaves. The other anthocyanin pigments have similar contents always weaker than those of Cyanidin MG3 and Pæonidine MG3.</p><p style="text-align: justify;">The output in total anthocyanin obtained of the cuttings of the laboratory is equal to 25 p. cent of that of the vineyard.</p>

Detection of Adulteration in Blackberry Juice Concentrates and Wines

1982 ◽  
Vol 65 (6) ◽  
pp. 1417-1423 ◽  
Author(s):  
Ronald E Wrolstad ◽  
Jeffrey D Culbertson ◽  
Christopher J Corn Well ◽  
Leonard R Mattick
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Thin Layer ◽  
Thin Layer Chromatography ◽  
High Performance ◽  
Gas Liquid Chromatography ◽  
Anthocyanin Pigments ◽  
Processing And Storage ◽  
And Storage ◽  
Layer Chromatography

Abstract Adulteration of blackberry juice concentrates and wines with juice of sorbitol-containing fruits was detected by determining carbohydrates by high performance liquid chromatography, gas-liquid chromatography, and thin layer chromatography. Sorbitol is not fermented by yeast and can be detected in wines made from blackberry juice concentrates that contain sorbitol. High levels of sorbitol and quinic and malic acids suggest that an imported blackberry concentrate may have been adulterated with plum. Degradation of anthocyanin pigments during processing and storage limits the utility of pigment analyses in detecting adulteration.

scholarly journals Computational and experimental investigations of one-step conversion of poly(carbonate)s into value-added poly(aryl ether sulfone)s

2016 ◽  
Vol 113 (28) ◽  
pp. 7722-7726 ◽  
Author(s):  
Gavin O. Jones ◽  
Alexander Yuen ◽  
Rudy J. Wojtecki ◽  
James L. Hedrick ◽  
Jeannette M. García
Keyword(s):  
High Performance ◽  
Density Functional ◽  
Value Added ◽  
Single Step ◽  
Nucleophilic Attack ◽  
Experimental Investigations ◽  
Aryl Ether ◽  
One Step ◽  
Poly Carbonate

It is estimated that ∼2.7 million tons poly(carbonate)s (PCs) are produced annually worldwide. In 2008, retailers pulled products from store shelves after reports of bisphenol A (BPA) leaching from baby bottles, reusable drink bottles, and other retail products. Since PCs are not typically recycled, a need for the repurposing of the PC waste has arisen. We report the one-step synthesis of poly(aryl ether sulfone)s (PSUs) from the depolymerization of PCs and in situ polycondensation with bis(aryl fluorides) in the presence of carbonate salts. PSUs are high-performance engineering thermoplastics that are commonly used for reverse osmosis and water purification membranes, medical equipment, as well as high temperature applications. PSUs generated through this cascade approach were isolated in high purity and yield with the expected thermal properties and represent a procedure for direct conversion of one class of polymer to another in a single step. Computational investigations performed with density functional theory predict that the carbonate salt plays two important catalytic roles in this reaction: it decomposes the PCs by nucleophilic attack, and in the subsequent polyether formation process, it promotes the reaction of phenolate dimers formed in situ with the aryl fluorides present. We envision repurposing poly(BPA carbonate) for the production of value-added polymers.

Factors Affecting Aflatoxin B1 Removal by Flavobacterium aurantiacum

1995 ◽  
Vol 58 (1) ◽  
pp. 91-94 ◽  
Author(s):  
J. E. LINE ◽  
R. E. BRACKETT
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Aflatoxin B1 ◽  
Spectrophotometric Method ◽  
Phosphate Buffer ◽  
High Performance ◽  
Hplc Method ◽  
Apparent Effect ◽  
Factors Affecting ◽  
Aflatoxin Concentration

This study was conducted to investigate several factors affecting the removal of aflatoxin B1 by Flavobacterium aurantiacum NRRL B-184. A simple spectrophotometric procedure was evaluated and compared to an established high-performance liquid chromatography (HPLC) method and found to be useful for determining aflatoxin concentration in test solutions of phosphate buffer. Using the spectrophotometric method, 72-h cultures of F. aurantiacum were observed to remove more toxin from solution than 24-h cultures. Likewise, populations of 1010cells removed aflatoxin at a faster rate than did 109 cells, although the total amount removed did not differ. Transferring F. aurantiacum cultures in tryptic soy broth every 3 days for over 3 days for over 8 months had no apparent effect on their ability to remove measurable amounts of aflatoxin B1 from solution. Populations of 1 × 109 CFU/ml or less heat-inactivated F. aurantiacum were unable to remove aflatoxin B1 from phosphate buffer.

Phosphorus Speciation in Water and Sediments

1999 ◽  
Vol 71 (11) ◽  
pp. 2161-2176 ◽  
Author(s):  
B. Ya. Spivakov ◽  
T. A. Maryutina ◽  
H. Muntau
Keyword(s):  
High Performance Liquid Chromatography ◽  
High Performance ◽  
Waste Waters ◽  
Phosphorus Speciation ◽  
Phosphorus Species ◽  
Spectrophotometric Methods ◽  
Condensed Phosphates ◽  
Automatic Methods ◽  
Lower Oxidation

Environmentally significant phosphorus species in water and phosphorus fractions in sediments are briefly discussed and the methods for their determination are described. One of the most critical analytical steps is the separation of the different forms which, after conversion into orthophosphates, may be determined by a multitude of various techniques. Spectrophotometric methods are often preferred for routine analysis. Several rapid automatic methods for the separation and determination of orthophosphate, linear polyphosphates, cyclic condensed phosphates and lower oxidation state anions of phosphorus, which may exist in natural and waste waters, have been developed. They are mainly based on the use of flow-injection analysis, high-performance liquid chromatography including ion chromatography, capillary electrophoresis and a few of other techniques. These methods have been described and critically evaluated.

scholarly journals A Bit String Content Aware Chunking Strategy for Reduced CPU Energy on Cloud Storage

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Bin Zhou ◽  
ShuDao Zhang ◽  
Ying Zhang ◽  
JiaHao Tan
Keyword(s):  
Energy Consumption ◽  
Data Center ◽  
System Performance ◽  
Cloud Storage ◽  
High Performance ◽  
Factors Affecting ◽  
Redundant Data ◽  
Energy Factors ◽  
The Cost ◽  
Content Aware

In order to achieve energy saving and reduce the total cost of ownership, green storage has become the first priority for data center. Detecting and deleting the redundant data are the key factors to the reduction of the energy consumption of CPU, while high performance stable chunking strategy provides the groundwork for detecting redundant data. The existing chunking algorithm greatly reduces the system performance when confronted with big data and it wastes a lot of energy. Factors affecting the chunking performance are analyzed and discussed in the paper and a new fingerprint signature calculation is implemented. Furthermore, a Bit String Content Aware Chunking Strategy (BCCS) is put forward. This strategy reduces the cost of signature computation in chunking process to improve the system performance and cuts down the energy consumption of the cloud storage data center. On the basis of relevant test scenarios and test data of this paper, the advantages of the chunking strategy are verified.

scholarly journals FAKTOR-FAKTOR YANG MEMPENGARUHI PERNIKAHAN DINI REMAJA PUTRI DI DESA SEMETEH MUARA LAKITAN KABUPATEN MUSI RAWAS

2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Juliana Widyastuti Wahyuningsih Juliana Widyastuti Wahyuningsih
Keyword(s):  
Health Education ◽  
Young People ◽  
Reproductive Health ◽  
Young Women ◽  
Junior High Schools ◽  
Early Marriage ◽  
Factors Affecting ◽  
Reproductive Health Education ◽  
The Media ◽  
Married Students

Pernikahan dini adalah pernikahan yang dilakukan seorang wanita pada usia 13 – 16 tahun atau pria berusia 17 – 18 tahun (BKKBN,2016). Menurut Laporan Badan Pusat Statistik, 2015 menunjukkan bahwa prevalensi perkawinan usia anak di Indonesia tidak hanya tetap tinggi (dengan lebih dari seperenam anak perempuan menikah sebelum mencapai usia dewasa (usia 18 tahun) atau sekitar 340.000 anak perempuan setiap tahunnya) tetapi prevalensi tersebut juga telah kembali meningkat. Tujuan dari penelitian ini adalah Mengetahui gambaran faktor – Faktor yang mempengaruhi Pernikahan dini Remaja Putri di Desa Semeteh Kecamatan Muara Lakitan Kabupaten Musi Rawas. Penelitian ini dilakukan secara kualitatif di Wilayah Desa Semeteh Muara Lakitan Kabupaten Musi Rawas.dengan jumlah responden 5 orang dari jumlah sampel 11 orang. Hasil penelitian menggambarkan bahwa pernikahan dini dilakukan oleh mereka yang berpendidikan SD atau SLTP, dan berpengetahuan cukup. Pernikahan dini dianggap sesuatu hal yang lazim dan menurunkan tanggung jawab ekonomi orang tua. Selain itu media punya andil terjadinya pernikahan dini. Penelitian ini diharapkan dapat bermanfaat bagi pasangan remaja calon pengantin, mahasiswa dan institusi profesi kebidanan khususnya dalam memberikan pendidikan kesehatan reproduksi remaja terkait dengan masalah pernikahan dini.     ABSTRACK   Early marriage is a marriage made by a woman at the age of 13-16 years or a man aged 17-18 years (BKKBN, 2016). According to the Central Bureau of Statistics Report, 2015 shows that the prevalence of marriage in Indonesian age is not only high (with more than one-sixth married girls before reaching adulthood (age 18) or about 340,000 girls annually) but the prevalence has also returned increased. The purpose of this study is to know the description of factors - Factors affecting early marriage of Young Women in the Semeteh Village Muara Lakitan Musi Rawas District. This study was conducted qualitatively in Semeteh Village, Muara Lakitan, Musi Rawas District with 5 people as the respondents of the 11 samples. The results of the study indicated that the early marriage was conducted by people who had educated in elementary or junior high schools, and had  sufficient knowledge. Early marriage was considered as a usual something and could  decrease economic responsibility of their parents. In addition, the media had contributed to the incidence of early marriages. This study is expected to be useful for couples of young people who will get to be married, students and midwifery profession institutions  particularly in providing reproductive health education for the adolescences in accordance with the early marriage.  

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