scholarly journals Nutritional, Organoleptic and Phytochemical Properties of Soursop (Annona muricata) Pulp and Juice after Postharvest Ripening

2021 ◽  
pp. 15-28
Author(s):  
Bernard Tiencheu ◽  
Agbor Claudia Egbe ◽  
Aduni Ufuan Achidi ◽  
Noel Tenyang ◽  
Eurydice Flore Tiepma Ngongang ◽  
...  
Keyword(s):  
Proximate Composition ◽  
Phenolic Content ◽  
Food Additives ◽  
Total Phenolic ◽  
Annona Muricata ◽  
Phytochemical Screening ◽  
Nutrition And Health ◽  
Overall Acceptability ◽  
Postharvest Ripening ◽  
Hedonic Scale

Aims: Annona comprises many species but four are known as bearers of edible fruits, namely, A. reticulata, A. squamosal, A. cherimola and A. muricata. Soursop is not quite exploited in Cameroon. This work was aimed at determining the nutritional and phytochemical properties of soursop pulp and formulated juices. Methodology: The proximate composition, mineral and phytochemical contents of the pulp and formulated juice with food additives were determined using standard methods. The sensory evaluation of the juice was conducted using a 9- point hedonic scale. Results: Overall acceptability of the juices ranged from 3.87- 6.38. The qualitative phytochemical screening of the juices showed major secondary metabolites (alkaloids, saponins, tannins except steroids and glycosides). Quantitatively, total phenolic content ranged from 0.26-0.89mg GAE/ mL. Proximate composition of the pulp and juice also varied showing; protein (0.58-7.45%), lipid (0.10-0.74%), fibre (1.26-24.23%), ash (1.29 to 2.22%), carbohydrate (8.63-21.0%) and moisture (45.0-88.23%).The minerals in the pulp and juice were; K (7.70-10.06mg/g), Fe (0.19-0.42mg/g), Ca (0.96-2.16mg/g), Mg (0.19-0.68mg/g), Zn (0.04-0.08mg/g), P (0.05-1.23) and Na (0.73-0.81mg/g). Inclusion of additives to the juice generally increased the acceptability of consumers. Conclusion: It can be concluded that soursop pulp and juice contain appreciable amounts of nutrients and phytochemicals which can be exploited to improve nutrition and health. This may contribute to an increase in itsconsumption, a reduction in postharvest losses and an increase in domestication of soursop plant.

scholarly journals The Effect of High Pressure Processing on Polyphenol Oxidase Activity, Phytochemicals and Proximate Composition of Irish Potato Cultivars

Foods ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 517
Author(s):  
Konstantina Tsikrika ◽  
Nora O’Brien ◽  
Dilip K. Rai
Keyword(s):  
High Pressure ◽  
Polyphenol Oxidase ◽  
Proximate Composition ◽  
Phenolic Content ◽  
High Pressure Processing ◽  
Irish Potato ◽  
Potato Cultivars ◽  
Simultaneous Increase ◽  
Total Phenolic ◽  
Coumaric Acid

Polyphenol oxidase (PPO) activity, proximate composition, and phytochemicals were determined in four common Irish potato cultivars following a high pressure processing (HPP) at 600 MPa for 3 min. PPO activity was significantly (p < 0.05) lower in all HPP treated samples, while the overall proximate composition was not affected. The total phenolic content was significantly higher in the HPP treated samples. Chlorogenic acid levels significantly decreased with simultaneous increase of caffeic acid and p-coumaric acid levels upon HPP treatment. No significant changes were observed in rutin and ferulic acid levels, although their levels varied, depending on the potato cultivars, while the levels of cytotoxic glycoalkaloids (α-solanine and α-chaconine) remained unaltered.

scholarly journals Antioxidant, Anti-Diabetic and Phytochemical Screening of Dried Ficus carica Linn Fruit Powder

2020 ◽  
Vol 2 (1) ◽  
pp. 50
Keyword(s):  
Ethyl Acetate ◽  
Phenolic Content ◽  
Ethyl Acetate Extract ◽  
Total Phenolic ◽  
Total Flavonoid Content ◽  
Phytochemical Screening ◽  
Flavonoid Content ◽  
Dpph Assay ◽  
Ic50 Value ◽  
Different Types

Ficus carica L. or the common name is red figs that belong to the Moraceae family or the Mulberry family. Every part of the fruit or the tree has been able to treat different types of common diseases, for example, it is used as a natural laxative or a supplementary food for diabetes. Thus, this research uses four different solvents, ethyl acetate, ethanol, hexane, and water, to obtain the respective crude extracts in order to investigate the anti-diabetic properties by determining the inhibition of the activity of the diabetic enzymes, α-amylase, and α-glucosidase; and the DPPH assay determines the antioxidant activity while qualitative phytochemical screening was for phenols, alkaloids, tannins, saponins, and flavonoids; total quantitative phenolic and total flavonoid content was done. The phytochemical screening showed the presence of the compounds tested in different types of crude extracts. For the total phenolic content, ethyl acetate extract exhibits the highest content. In contrast, hexane extract shows the highest total flavonoid content. For the DPPH assay, ethyl acetate extract has the highest scavenging activity at 13.351 µg/mL with corresponding with the data of total phenolic content. For the α-glucosidase inhibitory activity, water extract has the lowest IC50 value among the four extracts but higher value than the standard. For α-amylase inhibitory activity, only ethanol extract showed the IC50 value, but it was a high value. In conclusion, there is potential for figs to be a natural source of medicine, and the extracts tested can be used for future studies.

PRELIMINARY PHARMACOGNOSTIC AND PHYTOCHEMICAL STUDIES ON AERIAL ROOTS OF FICUS BENGHALENSIS LINN.

INDIAN DRUGS ◽  
2015 ◽  
Vol 52 (11) ◽  
pp. 14-18
Author(s):  
S. J. Jain ◽  
◽  
T. A. Khan
Keyword(s):  
Ethyl Acetate ◽  
Phenolic Content ◽  
Total Phenolic ◽  
Phytochemical Screening ◽  
Calcium Oxalate Crystals ◽  
Ficus Benghalensis ◽  
Aerial Roots ◽  
Powder Characteristics ◽  
Growth Promoting ◽  
Phytochemical Studies

The aerial roots of Ficus benghalensis Linn (Moraceae) have been reported to have immunomodulatory, anti-bacterial and hair growth promoting activities. There are no reports on pharmacognostical and phytochemical investigations of these aerial roots. The aim of the present study was evaluation of sectional microscopy, powder characteristics, preliminary phytochemical screening of successive solvent extracts (petroleum ether, toluene, dichloromethane, methanol, ethyl acetate and aqueous extracts) of the aerial roots. The result of the sectional microscopy indicated the presence of cork cells, phloem and xylem. The powder characteristics indicated the presence of calcium oxalate crystals, lignified fibers. Preliminary phytochemical screening indicated the presence of flavonoids, phenolics and saponins. An extract rich in flavonoids (ethyl acetate rich extract) of the aerial roots was prepared and a quantitative analysis of total flavonoid and total phenolic content was done.

Phytochemical screening, total phenolic content, antioxidant, and cytotoxic activity of five peruvian plants on human tumor cell lines

2018 ◽  
Vol 10 (2) ◽  
pp. 161 ◽  
Author(s):  
Oscar Herrera-Calderon ◽  
Corina Alvarado-Puray ◽  
JorgeLuis Arroyo-Acevedo ◽  
JuanPedro Rojas-Armas ◽  
Victor Chumpitaz-Cerrate ◽  
...  
Keyword(s):  
Tumor Cell ◽  
Cytotoxic Activity ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Human Tumor ◽  
Total Phenolic ◽  
Tumor Cell Lines ◽  
Phytochemical Screening ◽  
Human Tumor Cell ◽  
Human Tumor Cell Lines

scholarly journals Development of a Novel Whey Date Beverage Fermented with Kefir Grains Using Response Surface Methodology

2019 ◽  
Vol 2019 ◽  
pp. 1-13
Author(s):  
Sana M’hir ◽  
Kais Rtibi ◽  
Asma Mejri ◽  
Manel Ziadi ◽  
Hajer Aloui ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Total Phenolic ◽  
Process Conditions ◽  
Whey Permeate ◽  
Overall Acceptability ◽  
Date Syrup ◽  
Kefir Grains

The aim of this study was to develop a novel kefir beverage using date syrup, whey permeate, and whey. The levels of the kefir grain inoculum (2–5% w/v), fruit syrup (10–50% w/v), and whey permeate (0–5% w/v) on pH, total phenolic content, antioxidant activity, lactic acid bacteria and yeast counts, and overall acceptability were investigated using central composite design. The use of response surface methodology allowed us to obtain a formulation with acceptable organoleptic properties and high antioxidant activities. The obtained beverages had total phenolic content, % DPPH scavenging activity, and overall acceptability ranging from 24 to 74 mg GAE/mL, from 74.80 to 91.37 mg GAE/mL, and from 3.50 to 6 mg GAE/mL (based on a 1 to 9 preference scale), respectively. Date syrup of 36.76% (w/v), whey permeates of 2.99%, and kefir grains inoculum size of 2.08% were the optimized process conditions achieved.

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