#phenolic content

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The purpose of the present study was to explore the influences roasting on the radical scavenging activity and total Phenolic content on selected seeds. Fresh seeds of Prunus domestice, Prunus armeniace and Prunus persica were selected from the local market. The selected seeds were heated on the hotpot at a temperature 160 °C for 1 to 3 hours, respectively and one group were remain irrespective of any treatment (control). It was observed that roasting of fruit seeds produce different effects on total phenolic contents and radical scavenging activity. Antioxidant capacity was measured against the 2, 2-diphenyl-1-picrylhydrazyl (DPPH) whereas the reducing capacity was evaluated with the Folin-Ciocalteu reagent (FCR). Total phenolic content in Prunus domestica was highest at 160 °C when heated for 1 hour (554 mg/100g), similarly the total phenolic content in the Prunus armeniaca was highest when heated for 2 hour (684 mg/100g) while the Total phenolic content in the Prunus persica was highest when heated for 2 hour (684 mg/100g). Radical scavenging activity in the Prunus domestica was highest when heated for 1 hour (48 %). Similarly radical scavenging activity in the Prunus armeniaca was highest during heated for 1 hour (86 %) while radical scavenging activity in the Prunus persica was at maximum (43 %) at 2 hour treatment. It is suggested that different effect were produced when different fruit seeds were roasted at a single temperature, Therefore different optimum temperature and conditions are required for roasting different seeds.

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Phenolic Richness: Exploring Antioxidants in Apayao’s Indigenous Fruit Trees | InformativeBD

This study was conducted to determine the morphological characteristics, identity and total phenolic contents of three indigenous fruit trees in Apayao namely Namot, Bignai kalabaw and Lubeg. These lesser known trees were abundant in the region but were underutilized as very little information were available for its maximization. Results of the study showed that the Namot is the richest source of phenolics. Among the four (4) plant extracts, Namot leaves extracts showed the highest total phenolic contents at 1.06mg/g of the Gallic acid equivalent (GAE). The lowest phenolic contents were noticed in Bignai kalabaw (Antidesma bunius (L.) Spreng leaves at 0.71mg/g of the Gallic acid equivalent (GAE). The total phenolic contents of the extracts of lubeg fruits were found to be lower than the leaves at 0.99 and 1.05mg/g of the Gallic acid equivalent (GAE), respectively. Lubegbelongs to Family Myrtaceae under Phylum Magnoliophyta. The chemical composition of Lubeg leaves was high in steroids, tannins, and coumarins while its fruits were highly positive in quinones and flavonoids. It has anti-oxidant property, and anti-inflammatory. Phenolics are the largest group of phytochemicals that account for most of the antioxidant activity in plants or plant products. The total phenolic content will be helpful for developing new drugs and standardizing the drug. Gallic acid may occur in plants in soluble form either as quinic acid esters (5) or hydrolyzable tannins. The most important biological activity of phenolic compounds is probably their many observed inhibitory effects on mutagenesis and carcinogenesis.

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This study was conducted to determine the morphological characteristics, identity and total phenolic contents of three indigenous fruit trees in Apayao namely Namot, Bignai kalabaw and Lubeg. These lesser known trees were abundant in the region but were underutilized as very little information were available for its maximization. Results of the study showed that the Namot is the richest source of phenolics. Among the four (4) plant extracts, Namot leaves extracts showed the highest total phenolic contents at 1.06mg/g of the Gallic acid equivalent (GAE). The lowest phenolic contents were noticed in Bignai kalabaw (Antidesma bunius (L.) Spreng leaves at 0.71mg/g of the Gallic acid equivalent (GAE). The total phenolic contents of the extracts of lubeg fruits were found to be lower than the leaves at 0.99 and 1.05mg/g of the Gallic acid equivalent (GAE), respectively. Lubegbelongs to Family Myrtaceae under Phylum Magnoliophyta. The chemical composition of Lubeg leaves was high in steroids, tannins, and coumarins while its fruits were highly positive in quinones and flavonoids. It has anti-oxidant property, and anti-inflammatory. Phenolics are the largest group of phytochemicals that account for most of the antioxidant activity in plants or plant products. The total phenolic content will be helpful for developing new drugs and standardizing the drug. Gallic acid may occur in plants in soluble form either as quinic acid esters (5) or hydrolyzable tannins. The most important biological activity of phenolic compounds is probably their many observed inhibitory effects on mutagenesis and carcinogenesis.

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MORPHOGENESIS AND HISTOPATHOLOGY OF FRUIT GALLS INDUCED BY Pseudophacopteran sp. ON Alstonia scholaris | UTTAR PRADESH JOURNAL OF ZOOLOGY

Alstonia scholaris (Chatim Tree) attracts the interest of scholars all over the world since these plants are severely harmed by insect galls, reducing their decorative and therapeutic value. Plant galls are pathologically grown plant cells, tissues, and organs caused by parasitic organisms such as viruses, bacteria, fungi, algae, nematodes, mites, or insects. As a result, a study of the histological and biochemical changes in fruit galls caused by Pseudophacopteran sp., a psylloid herbivore on Alstonia scholaris, has been undertaken. The winged adult insect had protruding eyes and was yellowish in colour. Inside the fruit chamber, the nymph moults to reach the adult stage. The presence of hyperplasia in the pericarp was clearly visible. The pericarp grew in number, forming a "covering gall." The amount of chlorophyll in the gallbladder tissue has reduced. The modification of plant cell metabolism in galls resulted in a continuous increase in glucose content in galled fruit. Increased phenolic content caused oxidative stress in fruit cell lineages in response to pathogen, preventing seed development. Please see the link :- http://mbimph.com/index.php/UPJOZ/article/view/1749

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MORPHOGENESIS AND HISTOPATHOLOGY OF FRUIT GALLS INDUCED BY Pseudophacopteran sp. ON Alstonia scholaris | UTTAR PRADESH JOURNAL OF ZOOLOGY

Alstonia scholaris (Chatim Tree) attracts worldwide attention from scientists as these plants are heavily damaged by insect galls that affect their ornamental and medicinal value. Plant galls are pathologically formed plant cells, tissues, and organs, such as viruses, bacteria, fungi, algae, nematodes, mites, or insects, caused by the influence of a parasitic organism. An attempt was therefore made to research the histological and biochemical changes in fruit galls caused by Alstonia scholaris psylloid herbivores, Pseudophacopteran sp. The colour of the adult insect was yellowish, winged and with bulging eyes. To enter the adult stage within the fruit chamber, the nymph undergoes moulting. Pericarpal hyperplasia was observed quite clearly. To form a' covering gall,' the pericarp proliferated. The gall tissue chlorophyll content decreased. The manipulation of plant cell metabolism in galls was attributed to a steady increase in carbohydrate content in galled fruit. Increased phenolic content in the fruit cell lineages exerted oxidative stress in response to the pathogen, thus inhibiting seed formation. Please see the link :- https://mbimph.com/index.php/UPJOZ/article/view/1749

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Genetic Variability for Antioxidant Activity and Total Phenolic Content in Four Major Pulse crops_Crimson publishers

Genetic Variability for Antioxidant Activity and Total Phenolic Content in Four Major Pulse crops by Jagdish Singh in Food science

Total phenolic content and antioxidant activity were evaluated in 139 diverse genotypes of four pulse crops including 54 genotypes of chickpea (Cicer arietinum), 37 lentil (Lens culinaris), 21 pigeonpea (Cajanus cajan), and 26 blackgram (Vigna mungo). Results indicate significant genotypic variation (p < 0.01) for total phenolic content (TPC) as well as antioxidant activity (AOA). Amongst the four major pulse crops tested, maximum mean phenolic content was recorded in blackgram genotypes (7.01mg GAE/g), followed by lentil (3.46mg GAE/g), pigeonpea (3.32mg GAE/g) and chickpea (2.30mg GAE/g). In general, the Mediterranean landraces of lentil had higher phenolic content as compared to the other lentil varieties and breeding lines. Amongst the chickpea genotypes the phenolic content ranged from 0.40 to 5.63mg GAE/g and comparatively higher value for phenolic content was recorded in desi types (2.67mg GAE/g) as compared to the Kabuli types (1.05mg GAE/g).

The antioxidant activity (AOA) was assayed in mature dry seeds utilizing DPPH (2,2-Diphenyl-1-picryl hydrazyl) radical scavenging assay which ranged from 1.73 to 19.14μmole Trolox/g tissue. As observed for TPC, highest AOA was also recorded in blackgram genotypes (19.14μmole Trolox/g tissue), followed by pigeonpea (2.72μmole Trolox/g tissue), chickpea (2.05μmole Trolox/g tissue) and lentil (1.73μmole Trolox/g tissue). Highly significant genotypic as well as phenotypic correlation (p<0.01) was recorded between phenolic content and antioxidant activity in chickpea, lentil as well as blackgram (rG values ranging from 0.268 to 0.850 and rP from 0.253 to 0.817), however, surprisingly the values were non-significant in case of pigeonpea. Strongest genotypic correlation was recorded in chickpea (rG=0.850), followed by lentil (rG =0.744), and blackgram (rG =0.268). High broad-sense heritability (h2bs) (0.89 to 0.97) for phenol content was recorded which indicates that substantial portion of total variation for phenolic content is due to genetic effects.