scholarly journals Effect of Grape Pomace Addition on the Technological, Sensory, and Nutritional Properties of Durum Wheat Pasta

Foods ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 354 ◽  
Author(s):  
Roberta Tolve ◽  
Gabriella Pasini ◽  
Fabiola Vignale ◽  
Fabio Favati ◽  
Barbara Simonato
Keyword(s):  
Food Industry ◽  
Cooking Time ◽  
Point Of View ◽  
Grape Pomace ◽  
Total Phenol Content ◽  
Phenol Content ◽  
Nutritional Properties ◽  
Overall Acceptability ◽  
Slowly Digestible Starch

In this study, fortified pasta was prepared by replacing semolina with 0, 5, and 10 g/100 g of grape pomace (GP), a food industry by-product, rich in fiber and phenols. GP inclusion in pasta significantly reduced its optimum cooking time and the swelling index, while also increasing the cooking loss (p < 0.05). Furthermore, pasta firmness and adhesiveness were enhanced by the GP addition, as well as the total phenol content and the antioxidant activity, evaluated through ABTS and FRAP assays (p < 0.05). From a nutritional point of view, increasing amounts of GP resulted in a significative decrease in the rapidly digestible starch and an increase in the slowly digestible starch, while the predicted in vitro glycemic index was also reduced (p < 0.05). Sensory analysis showed that fortified spaghetti had good overall acceptability, and the results suggest that GP-fortified pasta could represent a healthy product with good technological and sensory properties.

Total phenol content of guava fruit and development of an in vitro regeneration protocol amenable to genetic improvement

2011 ◽  
Vol 4 (2/3/4) ◽  
pp. 225 ◽  
Author(s):  
Viji Sitther ◽  
Donna L. Harris ◽  
Sadanand A. Dhekney ◽  
Jinhe Bai ◽  
Elizabeth A. Baldwin ◽  
...  
Keyword(s):  
Genetic Improvement ◽  
In Vitro Regeneration ◽  
Total Phenol ◽  
Total Phenol Content ◽  
Phenol Content ◽  
Guava Fruit

scholarly journals HPTLC Profile of Phenolic Compounds Presents in Extracts Obtained from Different Varieties of White and Red Grape Pomace

2021 ◽  
Vol 8 (1) ◽  
pp. 25-30
Author(s):  
Bubueanu Corina ◽  
Catalin Ducu ◽  
Ioana Tabrea ◽  
Sorin Moga
Keyword(s):  
Quality Evaluation ◽  
Chemical Compounds ◽  
Food Supplement ◽  
Grape Pomace ◽  
Total Phenol ◽  
Total Phenol Content ◽  
Cabernet Sauvignon ◽  
Phenol Content ◽  
Red Grapes ◽  
Red Grape

Grape pomace is used in different areas in the food and food supplement, cosmetic, pharmaceutic industries, and for compost or animal food. The chemical composition is different between white and red grapes varieties, depending also on the sort of wine obtained. Grape pomace contains various chemical compounds from the following classes: phenolics, proteins, minerals, lipids.  Our goal was to show the HPTLC fingerprint for quality evaluation and total phenol content for the quantitative evaluation of extracts obtained from 4 varieties of grape pomace (Feteasca regala, Riesling, Burgund, Cabernet Sauvignon). The extracts were obtained by UAE and MAE. The HPTLC fingerprints of the extract shown that there are 4 compounds present in all samples: rutin, hyperoside and, chlorogenic and caffeic acids. In all samples was observed the presence of resveratrol. Total phenol content expressed as gallic (GAE) acid equivalents per 100ml extract were between 4.75% and 13.08%.

scholarly journals Phytochemical Characterization, In Vitro Antioxidant, Cytotoxic, and Antibacterial Effects of Aristolochia longa L.,

2020 ◽  
Vol 11 (1) ◽  
pp. 8129-8140
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Colorimetric Method ◽  
Inhibition Zone ◽  
Inhibitory Effect ◽  
Total Phenol ◽  
Total Phenol Content ◽  
Phytochemical Screening ◽  
Phenol Content

The aim of this study was devoted, in the one hand, to determine a preliminary phytochemical screening of methanolic and aqueous root extracts of Aristolochia longa L. In the other hand, polyphenols and flavonoids contents, in vitro antioxidant, antitumor, and antibacterial activities of the organic extract of A. longa were determined. Phytochemical screening was carried out using standard methods of precipitation and coloration reactions. The total phenol content and flavonoid contents were determined using the Folin-Ciocalteu method and Aluminum chloride colorimetric method, respectively. Antioxidant activity was studied using DPPH assay. The cytotoxic activity of extracts was evaluated against three cancerous cell lines using MTT assay, and antibacterial activity was tested against Escherichia coli, Pseudomonas aeruginosa, Rhodococcus equi, and Staphylococcus aureus using the agar well diffusion assay. Preliminary phytochemical screening for aqueous and ethanolic extracts revealed the presence of starch, tannins, flavonoids, coumarins, and anthocyanins. The total phenol content of A. longa extracts showed that the methanol extract has the highest polyphenol and flavonoid concentrations with 101.4 mg GAE (Gallic acid equivalent)/g and 54.21 mg QE (Quercetin equivalent)/g extract, respectively. The methanolic extract also exhibited the highest antioxidant capacity of DPPH (IC50 = 1.32 mg/mL). While hexane extract exhibited both a potent inhibitory effect on VERO cell growth with IC50 = 15.125 μg/mL and a total inhibitory effect on Staphylococcus aureus with inhibition zone 8.5 mm. The high content of polyphenols in A. longa explains their antioxidant, antitumor, and antibacterial activity. Thus, this plant could be a significant source of natural compounds in preventing the development of cancer.

scholarly journals BIOACTIVITIES OF THE ETHYL ACETATE EXTRACT OF RHODOCOCCUS QINGSHENGII STRAIN BJC15-A38 AN ENDOPHYTE OF AZADIRACHTA INDICA A. JUSS

2017 ◽  
Vol 9 (6) ◽  
pp. 211 ◽  
Author(s):  
Preeti Saini ◽  
Madhurama Gangwar ◽  
Amrinder Kaur
Keyword(s):  
Ethyl Acetate ◽  
Azadirachta Indica ◽  
Significant Inhibition ◽  
Total Phenol ◽  
Antidiabetic Activity ◽  
Total Phenol Content ◽  
Phenol Content ◽  
Alpha Glucosidase ◽  
Antidiabetic Effects

Objective: This study evaluated the antidiabetic activities of the ethyl acetate-methanol (4:1) extract (EA) of Rhodococcus qingshengii strain BJC15-A38 supernatant.Methods: In vitro alpha-amylase and alpha-glucosidase inhibitory assays, were used to determine the antidiabetic activity of EA (100, 250, 500, 750 and 1000 μg/ml). Also, the total phenol content of the extract was determined, followed by understanding the mode of α-amylase inhibition.Results: The crude extract from Azadirachta indica A. Juss. endophytic actinomycete Rhodococcus qingshengii strain BJC15-A38 was found to have significant inhibition against α-amylase (IC50 = 65.93 µg/ml) and α-glucosidase (IC50 = 929.56 µg/ml). The total phenol content of the crude was found to be 97.25±6.47 and 15.40±0.43 mg/g of the extract in terms of catechol and gallic acid equivalents respectively. Purification of the extract was carried out using silica gel column chromatography. Kinetic analysis revealed the mixed competitive with mixed competitive of inhibition towards α-amylase.Conclusion: The findings suggest that the extract of Rhodococcus qingshengii strain BJC15-A38 possesses antidiabetic effects.

scholarly journals Total Phenol Content and In Vitro Antioxidant Potential of Helicanthus elastica (Desr.) Danser-A Less-explored Indian Mango Mistletoe

2014 ◽  
Vol 4 (4) ◽  
pp. 285-288 ◽  
Author(s):  
Koppala Narayana Sunil Kumar ◽  
Ariyamuthu Saraswathy ◽  
Swaminathan Amerjothy ◽  
Thomas Susan ◽  
Basaviah Ravishankar
Keyword(s):  
Total Phenol ◽  
Antioxidant Potential ◽  
Total Phenol Content ◽  
Phenol Content

In-vitro Antioxidant and Cytotoxic properties of Strobilanthes kunthianus

2021 ◽  
pp. 2522-2528
Author(s):  
Geetha Balasubramaniam ◽  
Mahendran Sekar ◽  
Shrishailappa Badami
Keyword(s):  
Antioxidant Activity ◽  
Cell Lines ◽  
Total Phenol ◽  
Total Phenol Content ◽  
Cytotoxic Activities ◽  
Phenol Content ◽  
Methanol Extracts ◽  
Flower Extract ◽  
Hela Cell Lines

Background: Strobilanthes kunthianus Nees T Anders (S. kunthianus, Neela kurinji) is a shrub in the grasslands of Western Ghats in India. The Nilgiris, which literally means the blue mountains got its name from the purplish blue flowers of Neelakurinji that blossoms gregariously once in twelve years. It is well known for its biological properties. However, so far there is no detailed antioxidant and cytotoxic studies has been carried out. Objective: The present study aimed to evaluate in-vitro antioxidant and cytotoxic activities of various parts of S. kunthianus extracts. Methods: Fourteen extracts were prepared in different parts of S. kunthianus including stem, leaves, flowers and roots. All the extracts were examined for in-vitro antioxidant and cytotoxic activities using standard methods. The total phenol content was estimated by Folin Ciocalteau method. Results: The crude methanol flower extract was found to contain very high total phenol content among all the extracts. Among the tested extracts, the ethyl acetate extracts of root and stem showed potent in-vitro antioxidant activity, when compared to ascorbic acid in ABTS method. These extracts showed better activity than other successive extracts of root and stem. In case of methanol extracts, the crude extracts showed potent antioxidant activity in ABTS, H2O2, and total antioxidant capacity methods. The crude methanol flower extract was found to be the most potent among the methanol extracts. Many natural products have served as anticancer agents in the treatment and also as lead compounds for further research. All the extracts were tested for their cytotoxic activity against Hep-2 and HeLa cell lines. But all the extracts showed weak activity in the tested cell lines. Conclusion: S. kunthianus merits further investigation in animal models to confirm its antioxidant and anticancer properties and to isolate the phytoconstituents that are responsible for their biological activities.

A Potent In Vitro α-Amylase Inhibitory Action of Haplophyllum tuberculatum Extracts

2020 ◽  
Vol 15 (3) ◽  
pp. 190-196 ◽  
Author(s):  
Housseyn Chaoua ◽  
Ihcen Khacheba ◽  
Hadjer Boussoussa ◽  
Abir Bekhaoua ◽  
Mohamed Yousfi
Keyword(s):  
Inhibitory Activity ◽  
Inhibitory Action ◽  
Dry Matter ◽  
Total Phenol ◽  
Biologically Active ◽  
Antidiabetic Activity ◽  
Total Phenol Content ◽  
Phenol Content ◽  
Haplophyllum Tuberculatum

Background: Natural plant active compounds were found to inhibit the activity of several enzymes that may be related to several diseases. Objective: This study aimed at testing the antidiabetic activity related to the phenol content by in vitro α-Amylase inhibitory action effect of aqueous, organic and essential oil extracts of Haplophyllum tuberculatum, collected in the town of Laghouat in the steppe region of Algeria. Methods: Two types of aqueous extracts were prepared: Decoction and Diffusion extracts. The organic extracts were prepared with successful maceration in hexane, dichloromethane, ethyl acetate, ethanol and methanol. Also, essential oils were obtained by hydrodistillation. The analysis of the total Phenol content of our extracts was done with Folin-Ciocalteu reagent, as the flavonoid content was obtained in mixture with aluminum trichloride. The effects of the plant extracts on the catalytic efficiency of α-amylase enzyme were represented by the enzymatic inhibitory percentage of each extract in which the inhibitory activity was expressed as IC50. Results: The total phenol content showed values ranging between 0.27 and 11.97 mg gallic acid equivalent / g dry matter. The flavonoid contents vary from 0.05 to 1.50 mg equivalent of rutin /g of dry matter. All the extracts showed good inhibitory activity against α- amylase of IC50, values ranged from 0.05 to 50.03 mg/ml. Conclusion : This study reports for the first time the inhibitory capacity of Algerian Haplophyllum tuberculatum species against α-amylase which could provide natural biologically active agents to be used in the management of diabetes.

scholarly journals The Effects of Gum Cordia on the Physicochemical, Textural, Rheological, Microstructural, and Sensorial Properties of Apple Jelly

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Mahsa Hasani ◽  
Sedigheh Yazdanpanah
Keyword(s):  
Physicochemical Properties ◽  
Rheological Properties ◽  
Apparent Viscosity ◽  
Complex Viscosity ◽  
Total Phenol ◽  
Total Phenol Content ◽  
Phenol Content ◽  
Overall Acceptability ◽  
Gum Cordia

The aim of this research was to study the effects of gum cordia on the physicochemical, color, textural, rheological, microstructural, and sensorial properties of apple jelly. Apple jelly was prepared by replacement of 0, 25, 50, 75, and 100% of pectin with gum cordia. The results showed that gum cordia had a significant effect on the physicochemical properties (ash, protein, TPC, DE, and color) of apple jelly. The total phenol content of the sample significantly increased with the addition of gums. The rheological properties showed that a sample containing 75% gum cordia was similar to control and had the highest apparent viscosity, loss moduli (G″), storage moduli (G′), and complex viscosity. Also, the sensorial properties showed that a sample containing 75% gum cordia had a high score in texture, taste, appearance, and overall acceptability. The results suggested that gum cordia as a polymer can be successfully employed for the formulation of jelly for improving technofunctional properties of jelly.

scholarly journals Polianthes Tuberosa as Edible Flower: In Vitro Propagation and Nutritional Properties

2020 ◽  
pp. 57-62
Author(s):  
Andrea Copetta ◽  
◽  
Ilaria Marchioni ◽  
Carlo Mascarello ◽  
Laura Pistelli ◽  
...  
Keyword(s):  
Functional Food ◽  
Soluble Sugars ◽  
Point Of View ◽  
Multiplication Rate ◽  
Dpph Assay ◽  
Nutritional Properties ◽  
Flower Scent ◽  
Poor Seed ◽  
Very High

Tuberose (Polianthes tuberosa) is a bulbous species belonging to Asparagaceae family, characterized by a very high ornamental value, pleasant flower scent and taste. For all these reasons, flowers are currently used to produce perfumes or valorized as actual ingredient of different recipes, since they are completely edible. P. tuberosa is one out of 40 species studied in INTERREG ALCOTRA “ANTEA” project, which aim is to extend the use of edible flowers as functional food and enlarge the number of the species used for the supply chain of the edible flowers. Fresh flowers were analyzed in order to characterize them from the nutrition point of view. They show good polyphenols content and antioxidant activity (DPPH assay), while flavonoids, anthocyanins and carotenoids amounts are low. On the other hand, P. tuberosa flowers can be a real source of vitamin C, because of the high quantities of this molecule in the petals. Soluble sugars are present in small amount. High quantities of P. tuberosa flowers are difficult to obtain due to low bulb multiplication rate and poor seed germination. For these reasons, in vitro culture was performed to facilitate plant propagation. Bulbs were surface-sterilized for 30’’ in ethanol 70 % and then for 20’ in NaClO 2.5 % solution, while seeds were surface-sterilized for 20’in NaClO 1 % solution. Both were rinsed twice with autoclaved distilled water for 10 minutes after sterilization. The bulbs were cultured in jars containing MS agarized substrate enriched with 3% sucrose, 1.5 mg/L BA, 0.5 mg/L IAA and 0.7% agar (pH 5.8). Seeds were germinated in Petri dishes with agar-water substrate and then 14 different clones were selected and cultured in jars. The multiplication rate of the clones was very variable but some of them reached a good multiplication rate.

Sign in / Sign up

Export Citation Format

Share Document