scholarly journals CHEMICAL COMPOSITION AND ANTIOXIDANT ACTIVITIES OF BEETROOT PEEL.

2020 ◽  
Vol 2 (1) ◽  
Keyword(s):  
Crude Protein ◽  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Analytical Techniques ◽  
Antioxidant Property ◽  
Ash Content ◽  
The Body ◽  
Good Source ◽  
Mineral Contents ◽  
Detectable Range

Proximate, mineral and antioxidant properties of beetroot (Beta vulgaris) peel were investigated using standard analytical techniques. Result for proximate revealed that moisture content was 30.88%, ash content (10.58%), crude fat (3.29%), crude fiber (6.98%), crude protein (4.10%) and carbohydrate (44.17%). The mineral composition (mg/g) also showed that sodium was 4.17%, iron (26.46%), copper (0.21%), magnesium (5.91%), potassium (13.82%) and phosphorus (11.57%) while zinc and calcium were not at detectable range of AAS. There was no activity for its antioxidant property. The results obtained from this analysis shows that Beetroot peel is a good source of carbohydrates, protein, ash, fiber, lipid and moisture, it also contained some mineral contents such as copper, phosphorous and iron which are required by the body to function effectively. Its consumption is therefore advertised instead of regarding it as a waste material. Keywords: antioxidant, investigation, mineral, peel, proximate

scholarly journals How to express the antioxidant properties of substances properly?

2021 ◽  
Author(s):  
Małgorzata Olszowy-Tomczyk
Keyword(s):  
Oxidative Stress ◽  
Reactive Oxygen Species ◽  
Literature Review ◽  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Reactive Oxygen ◽  
The Body ◽  
Universal Method ◽  
Oxygen Species ◽  
Good Tool

AbstractOxidative stress, associated with an imbalance between the oxidants (reactive oxygen species) and the antioxidants in the body, contributes to the development of many diseases. The body’s fight against reactive oxygen species is supported by antioxidants. Nowadays, there are too many analytical methods, but there is no one universal technique for assessing antioxidant properties. Moreover, the applied different ways of expressing the results lead to their incompatibility and unreasonable interpretation. The paper is a literature review concerning the most frequent ways of antioxidant activities expression and for an easy and universal method of the obtained results discussion. This paper is an attempt to point out their disadvantages and advantages. The manuscript can support the searching interpretation of the obtained results which will be a good tool for the development of a number of fields, especially medicine what can help in the future detection and treatment of many serious diseases. Graphic abstract

scholarly journals Black goji berry (Lycium ruthenicum) tea has higher phytochemical contents and in vitro antioxidant properties than red goji berry (Lycium barbarum) tea

2020 ◽  
Vol 4 (4) ◽  
pp. 193-201
Author(s):  
Bei Liu ◽  
Qingqing Xu ◽  
Yujing Sun
Keyword(s):  
Antioxidant Capacity ◽  
Bioactive Compounds ◽  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Antioxidant Property ◽  
Lycium Barbarum ◽  
Antioxidant Power ◽  
Goji Berry ◽  
Good Habit

Abstract Goji berry tea, a traditional herbal tea, is the main ate mode of goji berry in Asia, yet few studies in comparison with red goji berry tea and black goji berry tea are carried out. This study investigated the effects of water temperature and soak time on the colour, phytochemicals, and the antioxidant capacity [2,2-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), 2,2-diphenyl-1-picrylhydrazyl radical (DPPH), and the ferric-reducing antioxidant power (FRAP)] of two goji berry tea. A comparison of the bioactive compounds and antioxidant activities between black and red goji berry tea was conducted. Results showed that both red and black goji berry tea were rich in phytochemicals, giving high antioxidant ability. The levels of bioactive compounds and the antioxidant activity of the two goji berry tea increased as the increases in soak temperature and time. Black goji berry tea had higher phytochemicals and antioxidant property than those of red goji berry tea. Infused at 100° water for the same time, the levels of total polysaccharides (150 mg/100 ml), total polyphenols (238 mg/ml), and antioxidant capacity (550 μmol/100 ml) of black goji berry tea were 3.5, 2, and 5 times higher, respectively, in comparison with red goji berry tea. The results of this study demonstrate that hot drink of goji berry in China is a good habit and black goji berry tea may be a better choice.

scholarly journals Hibiscus sabdariffa extract as anti-aging supplement through its antioxidant and anti-obesity activities

2020 ◽  
Vol 7 (1) ◽  
pp. 3572-3578
Author(s):  
Zuliana Muhamad Ridzwan Krishnamurthy ◽  
Nurzalina Abdul Karim Khan ◽  
Insathe Mohd Ali ◽  
Mohamad Dayoob ◽  
Shahad Shakho Hussein
Keyword(s):  
Aqueous Extract ◽  
Pancreatic Lipase ◽  
Healthy Aging ◽  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Ethanolic Extract ◽  
The Body ◽  
Hibiscus Sabdariffa ◽  
Ethanolic Extracts ◽  
Alpha Glucosidase

Introduction: Imbalance between total energy intake and expenditure causes accumulation of excess fat and sugar in the body which leads to development of diabetes mellitus type II, obesity, and metabolic syndrome. These harmful diseases accelerate aging and cause fatal metabolic disorders as people age. Inhibition of pancreatic lipase, and alpha glucosidase digestive enzymes is a step that can reduce excess fat and sugar from the body, which is an essential component of healthy aging. Methodology: In this study, aqueous and 50% ethanolic extracts of Hibiscus sabdariffa were investigated for their inhibitory activities on pancreatic lipase and alpha-glucosidase, in addition to their antioxidant activities (using UV-vis spectrophotometer). Results: Both extracts displayed antioxidant properties, indicated by IC50 of 5166.80 mg/mL for H. sabdariffa aqueous extract and 2809.10 mg/mL for H. sabdariffa 50% ethanolic extract. The extracts also suppressed the activities of pancreatic lipase and alpha-glucosidase enzymes, which suggests possible antiobesity and anti-diabetic activities. H. sabdariffa aqueous extract inhibited pancreatic lipase activity with IC50 of 167.5+/-12.7 mg/mL, whereas H. sabdariffa 50% ethanolic extract inhibited the enzyme with an IC50 of 790.65+/-16.02 mg/mL. Both H. sabdariffa aqueous and ethanolic extracts also successfully inhibited alpha-glucosidase enzyme activity with IC50 949.88 +/-10.83 mg/mL, and 378.33 +/-4.20 mg/mL, respectively. Conclusion: Taken together, the outcome of the investigations offers the possibility of the extracts as an anti-obesity, anti-diabetic, anti-metabolic and anti-aging agent, which can be developed into supplements for adults to prevent the occurrence of these prevalent diseases and delay the onset and effects of aging.  

scholarly journals Proximate, Mineral and Antinutrient Contents of Cocoyam (Xanthosoma sagittifolium (L.) Schott) from Ethiopia

2019 ◽  
Vol 2019 ◽  
pp. 1-7
Author(s):  
Eyasu Wada ◽  
Tileye Feyissa ◽  
Kassahun Tesfaye
Keyword(s):  
Rural Areas ◽  
Crude Protein ◽  
Sustainable Use ◽  
Antinutritional Factors ◽  
Nutritional Composition ◽  
Ash Content ◽  
Mineral Contents ◽  
Lack Of Information ◽  
Xanthosoma Sagittifolium ◽  
Gross Energy

Cocoyam (Xanthosoma sagittifolium (L.) Schott) is an important food crop especially in the tropics and subtropics. Its cormels and leaves are eaten after cooking in the rural areas in Ethiopia. There is lack of information on the nutritional composition of cocoyam grown in the country. In this study, cormels of green- and purple- cocoyams were analyzed to determine proximate and mineral contents and antinutritional factors. The moisture contents (%) of green- and purple-cocoyams were 61.91 and 63.53, respectively. Crude protein (10.10%) and fiber (2.66%) contents of purple cocoyam were significantly higher than crude protein (8.48%) and fiber (2.14%) contents of green cocoyam. Fat contents (%) of the green- and purple cocoyam were 0.85 and 0.22, respectively. Ash content of green cocoyam (3.25%) was significantly higher than the ash content of purple cocoyam (2.27%). The carbohydrate contents (%) and gross energy values (kcal/100 g) of green- and purple-cocoyam, respectively, were 85.36 and 378.47 and 84.76 and 380.27, showing that cocoyam grown in Ethiopia can be a good source of energy. Mineral contents (mg/100 g) of green cocoyam were determined as Fe (8.20), Zn (3.07), Cu (1.04), Mg (78.77), Mn (2.48), P (120.93), Na (29.22), K (1085.70) and Ca (56.57) while purple cocoyam had Fe (9.88), Zn (3.12), Cu (1.14), Mg (82.00), Mn (3.74), P (129.87), Na (24.33), K (1223.30) and Ca (44.90). High antinutritional factors (phytate and tannin) (mg/100 g) were determined from both green- and purple-cocoyam genotypes with significantly higher quantities in purple cocoyam (187.57 phytate and 156.1 tannin) than the green cocoyam (167.76 phytate and 139.62 tannin). This study provided important information about the nutritional composition of cocoyam from Ethiopia, which can help to develop cocoyam food products and to promote production and utilization of cocoyam by encouraging its sustainable use. More detailed analyses including processing and sensory testing are suggested for further investigation in order to obtain healthful and comfortable cocoyam products.

Nutritive contents of Allanblackia floribunda Oliv. (Guttiferae) forage in sylvopastoralism in southeastern agroecological zone of Nigeria

1970 ◽  
Vol 15 (2) ◽  
Author(s):  
A.I. Onyenso ◽  
K.A. Nwobodo ◽  
A.M. Yakubu
Keyword(s):  
Water Availability ◽  
Crude Protein ◽  
Crude Fibre ◽  
Good Source ◽  
Mineral Contents ◽  
Cross River ◽  
Cross River State ◽  
The Tropics ◽  
Rivers State ◽  
Agroecological Zone

Nutrition is one of the major constraints to livestock production in the tropics. This research aimed at assessing the nutritive contents of Allanblackia floribunda leaves from different sylvopastoralism locations in the southeastern agroecological zone of Nigeria: Ikwuano L.G.A. in Abia state, Ikom L.G.A. in Cross River state and Eleme L.G.A. in Rivers State. Leaf samples were analysed in the laboratory to determine their nutritive contents. The results of the proximate, minerals and vitamins analysis of Allanblackia floribunda leaves from Ikwuano, Ikom and Eleme as follows; crude protein: 9.51%, 8.46%, 9.86%; fat: 4.64%, 3.69%, 4.19%; Crude fibre: 17.32%, 15.24%, 17.12%; ash: 5.26%, 4.10%, 4.50%; carbohydrate: 0.46%,0.41%, 0.46% and moisture: 10.07%, 9.90%, 9.60%. For the mineral contents, calcium:14.70mg/100g,14.6970mg/100g, 15.37mg/100g; magnesium: 11.20 mg/100g, 11.33 mg/100g, 10.40 mg/100g; phosphorus: 287.88 mg/100g, 280.53 mg/100g, 290.05 mg/100g; potassium: 217.67 mg/100g, 219.12 mg/100g, 220.13 mg/100g and sodium: 21.07 mg/100g, 21.70 mg/100g, 20.67 mg/100g. For the vitamins, vitamins C: 15.25 mg/100g, 11.73 mg/100g, 14.66 mg/100g; thiamine: 0.04 mg/100g, 0.06 mg/100g, 0.04 mg/100g; riboflavin: 0.06 mg/100g, 0.06 mg/100g, 0.04 mg/100g; niacin: 0.18 mg/100g, 0.22 mg/100g, 0.16 mg/100g. The Anova results showed significant differences (p<0.05) in the proximate, minerals and vitamins contents, and such could reflect the variation in the types of soil and water availability in the areas. Generally, Allanblackia floridunda leaves are good source of forage for livestock. Keywords: Nutritive contents, Allanblackia floribunda leaves, sylvopastoralism, southeastern agroecological zone

scholarly journals Comparison of Antioxidant and Anticancer Properties of Soft Coral-Derived Sinularin and Dihydrosinularin

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 3853
Author(s):  
Sheng-Chieh Wang ◽  
Ruei-Nian Li ◽  
Li-Ching Lin ◽  
Jen-Yang Tang ◽  
Jui-Hsin Su ◽  
...  
Keyword(s):  
Cancer Cells ◽  
Soft Coral ◽  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Antioxidant Property ◽  
Radical Scavenger ◽  
Anticancer Properties ◽  
Liver Cancer Cells ◽  
Radical Scavenger Activity ◽  
Scavenger Activity

Marine natural products are abundant resources for antioxidants, but the antioxidant property of the soft corals-derived sinularin and dihydrosinularin were unknown. This study aimed to assess antioxidant potential and antiproliferation effects of above compounds on cancer cells, and to investigate the possible relationships between them. Results show that sinularin and dihydrosinularin promptly reacted with 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2-azinobis (3-ethyl-benzothiazoline-6-sulfonic acid) (ABTS), and hydroxyl (•OH), demonstrating a general radical scavenger activity. Sinularin and dihydrosinularin also show an induction for Fe+3-reduction and Fe+2-chelating capacity which both strengthen their antioxidant activities. Importantly, sinularin shows higher antioxidant properties than dihydrosinularin. Moreover, 24 h ATP assays show that sinularin leads to higher antiproliferation of breast, lung, and liver cancer cells than dihydrosinularin. Therefore, the differential antioxidant properties of sinularin and dihydrosinularin may contribute to their differential anti-proliferation of different cancer cells.

scholarly journals Analysis of the Proximate Composition, Anti-Nutrients and Mineral Content of Maerua Crassifolia Leaves

2020 ◽  
Vol 27 (1) ◽  
pp. 89-96
Author(s):  
U.I. Aletan ◽  
H.A. Kwazo
Keyword(s):  
Proximate Composition ◽  
Crude Protein ◽  
Mineral Content ◽  
Absorption Spectrometry ◽  
Proximate Analysis ◽  
Crude Protein Content ◽  
Good Source ◽  
Mineral Contents ◽  
Sodium Potassium ◽  
Lethal Doses

This study was carried out to determine the proximate composition, anti-nutrient and the mineral content of Maerua crassifolia leaves. Proximate analysis was performed using standard AOAC methods, mineral contents were determined using atomic absorption spectrometry while the anti-nutrients were analysed using standard methods. The results revealed that the leaves had moisture content of 62.00 %, ash content of 12.17± 0.47 g/100 g and crude protein content of 15.17 ± 0.02 g/100 g. The value of the minerals ranged between 75.33 ± 0.05 mg/kg for potassium and 2.88 mg/kg for magnesium. For the heavy metals, zinc had the highest value of 0.22 ± 0.02 μg/mg. The sodium: potassium ratio was calculated to be 0.92 ±0.00. All the anti-nutrients studied were below the lethal doses recommended. The results obtained indicate that the leaf will be a good source of nourishment if properly utilized. Keywords: proximate composition, mineral content, anti-nutrients, Maerua crassifolia

scholarly journals Antifungal and Antioxidant Activities of Lipophilic Compounds from Swietenia mahagoni (l.) Jacq. Leaves

2021 ◽  
Vol 6 (2) ◽  
pp. 62-68
Author(s):  
Masendra Masendra ◽  
Brandon Aristo Verick Purba ◽  
Rizki Arisandi ◽  
Ganis Lukmandaru
Keyword(s):  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Antioxidant Property ◽  
White Rot ◽  
Leaf Sample ◽  
Lipophilic Compounds ◽  
Central Java ◽  
Growth Inhibitory ◽  
Old Trees ◽  
Swietenia Mahagoni

The investigation on the n-hexane lipophilic extractives of Swietenia mahagoni, alongside the antifungal and antioxidant properties was conducted. The leaf sample was collected from 2- and 3-years-old trees in Perhutani enterprise of Temanggung, Central Java, Indonesia. In addition, the antifungal activity was tested using the white-rot of Phanerochaete chrysosporium, while the antioxidant property involved the DPPH (1,1-diphenyl-2-picrylhydrazyl) method. The results show antifungal of 28.6% and 37.5% growth inhibition in 2- and 3 -years-old leaf, respectively, while 21.7% and 25.4% antioxidant activity were also recorded. Furthermore, the GC-MS results showed the domination of S. mahagoni leaf by fatty acids and hydo-carbons, while the terpenoids and steroids were in minor quantities. These components possibly exhibit growth inhibitory and antioxidant effects against P. chrysosporium and DPPH radicals, respectively.

scholarly journals Nutrient profiles, functional compositions, and antioxidant activities of seven types of grain fermented with Sanghuangporus sanghuang fungus

2020 ◽  
Author(s):  
Tingting Song ◽  
Zuofa Zhang ◽  
Qunli Jin ◽  
Weilin Feng ◽  
Yingyue Shen ◽  
...  
Keyword(s):  
Crude Protein ◽  
Antioxidant Activities ◽  
Soluble Sugar ◽  
Antioxidant Properties ◽  
Principal Component ◽  
Health Food ◽  
Coix Seed ◽  
Solid Substrates ◽  
Nutrient Profiles ◽  
Fermentation Substrate

Abstract Sanghuangporus sanghuang (SS) is a rare medicinal polypore fungus that grows solely on Morus trees. In this study, seven grains (oats, barley, millet, rice, buckwheat, corn, and coix seed) were used as solid substrates for SS fermentation and characterized in their nutrition, functional composition, and antioxidant activities. After fermentation, the nutrient compositions of crude protein (F1,41 = 111.1, P < 0.01), soluble protein (F1,41 = 595.7, P < 0.01), soluble sugar (F1,41 = 51.4, P < 0.01) and ash (F1,41 = 227.3, P < 0.01) increased significantly. Oats were one of the best grains for SS fermentation, SS-Oat produced 6.23 mg QE/g polyphenols, 21.8 mg rutin/g flavonoids, and 2.3% triterpene. In addition, the antioxidant capacities of the seven grains all increased. Principal component analysis analysis shows that the antioxidant properties of the grains were similar after SS fermentation. The changes of antioxidant activity due to SS fermentation were corrected with corresponding grain and remarked as ΔT-AOC/ABTS+/DPPH/DNAp, that was correlated to part of changes in polyphenol, carotenoid, triterpenoids, and flavonoid contents. In summary, oats have the greatest potential for use as a fermentation substrate for health food development.

scholarly journals Phytochemical profiling and antioxidant activities of different parts of Artocarpus heterophyllus Lam. (Moraceae): A review on current status of knowledge

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
P. S. Sreeja Devi ◽  
Neethu S. Kumar ◽  
K. K. Sabu
Keyword(s):  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Current Status ◽  
Main Body ◽  
Huge Amount ◽  
Good Source ◽  
Medicinal Uses ◽  
Artocarpus Heterophyllus ◽  
Western Ghats Of India ◽  
Different Parts

Abstract Background Artocarpus heterophyllus Lam. (Jackfruit tree) is one of the most ancient fruits indigenous to Western Ghats of India. They are large edible summer fruits and are good source of nutritional and antioxidant components which hold their potential for nutraceutical development. Main body The present review attempts to document reports on the chemical and pharmacological investigations carried out with jackfruit. Research shows that the fruit contains a huge amount of phytochemicals such as phenolics, flavonoids, terpenoids, steroids, glycosides, saponins, alkaloids, and tannins which exhibit antioxidant properties. Conclusions Diversity of secondary metabolites present in the jackfruit shows that it is a functionally, nutritionally, and medicinally important fruit. Detailed studies are essential for awareness among people for the proper use of jackfruit as a functional food and utilize the medicinal uses of jackfruit.

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