Chemical composition and antioxidant activity of Waltheria Indica Linn whole plant

2020 ◽  
Vol 23 ◽  
pp. 69-76
Author(s):  
B. Rafiu ◽  
I.O. Lawal ◽  
M.B. Olaniyi

Waltheria indica is a promising medicinal plant belonging to family Malvaceae, which many biological activities of the solvent extracts of its various parts have been scientifically evaluated. The aim of this study was to evaluate and analyze the minerals, crude fibre and fat contents, the phytochemical constituents as well as the antioxidants activity of the powder sample of W. indica whole plant. Fresh sample of whole W. indica plant was collected and airdried at room temperature. The mineral constituents were determined by spectrophotometry. The crude fibre, fat contents and the qualitative and quantitative phytochemical compositions were determined using standard analytical procedure. The antioxidants activity was determined using 2, 2-diphenyl-1-picrylhydrazyl (DPPH) and Ferric reducing antioxidant potential (FRAP) assays. The mineral analysis results revealed the presence of micro and macro nutrients such as potassium, calcium, magnesium and manganese among others which are within the acceptable health range. The values (23.8%; 0.15%) obtained for both crude fibre and fat contents were reasonable. The qualitative phytochemical screening established the presence of alkaloids, terpenoids, flavonoids, tannins, anthraquinones and phenol. Steroids are in abundance while Cardiac glycosides are absent. The quantity of alkaloids (1.9%), saponins (1.4%), flavonoids (3.1%) and tannins (17422μg/GAE) are in appreciable amount which may be responsible for its various activities. W. indica showed good inhibitory scavenging activity and better reducing ability  compared to ascorbic acid. The results obtained from this study provide further scientific evidence to support the ethno-medicinal information on the uses of W. indica in the treatment of various health issues.

Author(s):  
Tran Ngoc Bao Do ◽  
Tien Thi My Le ◽  
Hiep Minh Dinh ◽  
Phuong Ngo Diem Quach

In Vietnam, Selaginella tamariscina (Beauv.) Spring. has been used as a traditional medicine for osteoarthritis, haemorrhage, hepatitis, burn, … However, Selaginella tamariscina is less studied than in other countries. Therefore, this research focuses on study some bioactivities (such as antioxidative, antibacterial activities, and inhibition of albumin denaturation) and preliminary phytochemical screening of six extracts (ethanol extracts of root, leaf, whole plant, petroleum extracts of root, leaf, whole plant) of S. tamariscina collect from Co Thach, Binh Thuan Province. The preliminary phytochemical screening results show that Selaginella tamariscina extracts have most of secondary metabolite groups such as phenolics, alkaloids, flavonoids, steroids, and lactone. The antibacterial activity of the ethanol extract of root is higher than that of other extracts. Moreover, the ethanol extract of root also has the highest reducing ability and free radical scavenging activity, with EC50 = 1.590 ± 0.091mg/ml. In the anti-denaturation of albumin test, the petroleum ether extract of whole plant has the lowest IC50 at 99 ± 5μg/ml.


1959 ◽  
Vol 52 (2) ◽  
pp. 238-243 ◽  
Author(s):  
D. J. C. Jones

1. Three varieties of giant rape, two broad leaved Essex rapes, Hungry Gap Kale and Rape-Kale, were grown at two centres in mid-Wales. They were sampled in the early winter period and the samples divided into separate leaf and stem samples. These samples were used to calculate leaf to stem ratios on a green and dry-matter basis.2. The levels of the proximate constituents, silica, calcium, magnesium, phosphorus, sodium, potassium, chlorine, total sulphur, sulphate sulphur and ‘organic’ sulphur were determined in the dried samples. Whole plant values were calculated from the leaf and stem values with the appropriate leaf to stem ratios.3. The leaf values for ether extract, crude protein, silica-free ash, silica, calcium, phosphorus, magnesium, chlorine, total sulphur and ‘organic’ sulphur are higher than the corresponding stem values. For dry matter, crude fibre, nitrogen-free extractives and sodium the reverse is found, whilst for sulphate sulphur there is no definite distribution.4. There are no significant differences in composition between the main groups of varieties, and the rape-type kales are very similar to the other rapes in this respect.


Author(s):  
Audu Michael Elaigwu ◽  
Ademuyiwa Hafiz Oladele ◽  
Joel Umaru

This study evaluated the proximate, mineral elements, and vitamins composition of oven-dried Schilbe mystus, Bagrus bayad, Oreochromis niloticus, Clarias anguillaris and Petrocephalus bane bane from Tiga Reservoir. The fishes were obtained from landing site of Tiga reservoir at Rano, they were beheaded, degutted and cleaned with distilled water and oven-dried to a constant weight at 105°C. Grinded form of samples were used for wet digestion and the contents were analyzed according to standard methods at the Biochemistry laboratory, University of Jos, The proximate content of the fishes varied significantly (p<0.05), with mean values of 4.79 - 9.52 g/100 g moisture content, 42.20 - 57.71 g/100 g crude protein, 0.90 - 12.51 g/100 g ash content, 3.41 - 9.93 g/100 g ether extract, 0.62 - 5.08 g/100 g crude fibre, 12.28 - 42.70 g/100 g nitrogen free extract and 90.48 - 95.21 g/100 g dry matter. Based on the FAO/WHO recommended nutrient intakes (RNIs), calcium, magnesium, iron and zinc were found in appreciable amount. The vitamin content of the fishes were above the WHO recommended limits, peak values of vitamins B1 (33.88 mg/l), B6 (15.83 mg/l), B12 (3.04 mg/l), were observed in P. bane bane alone. Whereas, C. anguillaris, O. niloticus and S. mystus contained the highest values of vitamins A (15.87 mg/l), C (1.22 mg/l) and E (4.22 mg/l) respectively. It has shown that all the fishes could be utilized as sources of protein, mineral elements and vitamins for human and animal foods.


Author(s):  
A. Nasir ◽  
F. I. Jaafar ◽  
I. U. Muhammad ◽  
K. I. Matazu ◽  
A. I. Yaradua ◽  
...  

The proximate and mineral analyses were conducted in the Department of Biochemistry Laboratory, Faculty of Basic Medical Sciences, Bayero University Kano, Nigeria, in May 2019. The study was carried out to determine the proximate and mineral composition of the fruit of Ficus polita using standard analytical methods. The fruit on dry weight basis (DW) contains moisture (9.12 %), ash (1.30 %), crude lipid (20.51 %), crude fibre (56.69 %), crude protein (1.19 %), available carbohydrates (11.40 %), and calorific value (234.98 Kcal/100 g). The fruit also contains potassium (324.46 mg/100 g), sodium (164.78 mg/100 g), calcium (91.09 mg/100 g), magnesium (70.06 mg/100 g), iron (3.39 mg/100 g), zinc (0.46 mg/100 g), manganese (0.37 mg/100 g), copper (0.23 mg/100 g), and cobalt (0.11 mg/100 g). The study revealed that F. polita fruit contains an appreciable amount of calorific value, crude fibre, crude lipid, available carbohydrate, and crude protein. The fruit was also found to be rich in minerals such as potassium, sodium, calcium, magnesium and iron. The fruit should be recommended as a good source of energy, fibre, lipid, carbohydrate, protein, potassium, sodium, calcium, magnesium, and iron.


Author(s):  
Idris M. Omenesa ◽  
Suleiman A. Itopa ◽  
Jwan’an L. Emmanuel ◽  
Abdulsalaam O. Abdulazeez ◽  
Sambo Ponfa

Introduction: Terminalia catappa is a large tropical tree in the lead wood tree family, combretacea. This plant is regarded as a medicinal plant and can be used in the treatment of cough, syphilis, hydropsy, rheumatism, and other infections. Aim: This study assessed the nutritional value of Terminalia catappa and the composition of elements present in the plant fruit. Methods: Proximate analysis was carried out according to food chemistry analytical methods and elements were estimated by atomic absorption and flame spectroscopy respectively. Results: Proximate analysis showed that the fruits contained 81.96% moisture content, 1.47% ash, 0.04% crude fat, 1.11% crude protein, 14.05% carbohydrate, and 1.41% crude fibre. The fruits were found to be good sources of minerals. Sodium (2.1±0.01 mg/100 g), potassium (72.5±1.03 mg/100 g), calcium (320±2.00mg/100g), magnesium (20±2.65 mg/100 g), iron (20±3.0 mg/100 g), manganese (2±0.36 mg/100 g), and zinc (8±1.25 mg/100 g). Conclusion: The results revealed the presence of nutrients such as proteins, carbohydrates, crude fats, crude fibre, moisture, and ash in small amounts. And elements analysis shows that sodium, potassium, calcium, magnesium, iron, manganese, and zinc are in appreciable amount. These constituents are therefore responsible for the biochemical values of Terminalia catappa fruits.


Antioxidants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 942
Author(s):  
Emilie Isidore ◽  
Hamza Karim ◽  
Irina Ioannou

Cannabis sativa L. is a controversial crop due to its high tetrahydrocannabinol content varieties; however, the hemp varieties get an increased interest. This paper describes (i) the main categories of phenolic compounds (flavonoids, stilbenoids and lignans) and terpenes (monoterpenes and sesquiterpenes) from C. sativa by-products and their biological activities and (ii) the main extraction techniques for their recovery. It includes not only common techniques such as conventional solvent extraction, and hydrodistillation, but also intensification and emerging techniques such as ultrasound-assisted extraction or supercritical CO2 extraction. The effect of the operating conditions on the yield and composition of these categories of phenolic compounds and terpenes was discussed. A thorough investigation of innovative extraction techniques is indeed crucial for the extraction of phenolic compounds and terpenes from cannabis toward a sustainable industrial valorization of the whole plant.


2021 ◽  
Vol 14 (5) ◽  
pp. 467
Author(s):  
Ana Henriques Mota ◽  
Inês Prazeres ◽  
Henrique Mestre ◽  
Andreia Bento-Silva ◽  
Maria João Rodrigues ◽  
...  

Sambucus nigra L. (S. nigra) is a shrub widespread in Europe and western Asia, traditionally used in medicine, that has become popular in recent years as a potential source of a wide range of interesting bioactive compounds. The aim of the present work was to develop a topical S. nigra extract formulation based on ethosomes and thus to support its health claims with scientific evidence. S. nigra extract was prepared by an ultrasound-assisted method and then included in ethosomes. The ethosomes were analyzed in terms of their size, stability over time, morphology, entrapment capacity (EC), extract release profile, stability over time and several biological activities. The prepared ethosomes were indicated to be well defined, presenting sizes around 600 nm. The extract entrapment capacity in ethosomes was 73.9 ± 24.8%, with an interesting slow extract release profile over 24 h. The extract-loaded ethosomes presented collagenase inhibition activity and a very good skin compatibility after human application. This study demonstrates the potential use of S. nigra extract incorporated in ethosomes as a potential cosmeceutical ingredient and on further studies should be performed to better understand the impact of S. nigra compounds on skin care over the time.


2021 ◽  
Vol 7 (1) ◽  
Author(s):  
C Nirmala ◽  
M Sridevi

Abstract Background In modern therapeutics, various human pathological disturbances were treated with the plant-based products. Waltheria indica Linn, a perennial herb, was commonly used in traditional medicine worldwide against various ailments such as cough, dysentery, diarrhea, bladder disorder, hemoptysis, inflammations, neuralgia, wounds, and ulcers. Main body The shrub was majorly distributed in tropical, subtropical regions and exists in many distinct local forms. Both the crude extracts and purified compounds from the whole plant and its parts showed wide pharmacological properties like antioxidant, analgesic, sedative, anti-bacterial, anti-fungal, and anti-parasitic. The phytochemical profile and traditional usage highlight the potency of the plant in the treatment of microbial infections and inflammatory diseases. Yet, additional studies are required for the confirmations of its traditional uses against other diseases. More detailed understanding of anti-cataract, anti-diabetics, asthma, anemia, and anti-cancer mechanism has to be explored. Though many research articles on the proposed plant are available, there has been a rising concern in the therapeutic property, especially on the alkaloids and flavonoids from this plant for drug design. Conclusion This article aims in a systematic and updated review on distribution, botany, traditional uses, phytocompounds, and relevant biological activities from each part of the plant. The information was collected from databases like PubMed, ScienceDirect, Web of Science, Google Scholar, books, dissertation, and reports via academic libraries that included more than 100 articles published since 1937. This ethnopharmacological study of the plant may create new insight into drug discovery to develop important novel leads against various biological targets.


Author(s):  
Genqiang Chen ◽  
Lina Zhu ◽  
Yanfei Xia ◽  
Jinming Yang ◽  
Song Zhang ◽  
...  

Background: Developing the high-efficiency and low-risk small-molecule green-nematocide is the key of effective control of the nematodes. Paeonol, is a naturally occurring phenolic compound, isolated from the root bark of Paeonia suffruticosa and the whole plant of Cynanchum paniculatum. Due to its crucial phenolic ketone skeleton, modern biological science research has indicated that paeonol has a wide range of biological activities. The structural modification of paeonol into paeonol carbonyl hydrazone derivatives is a potential approach for the development of novel nematodes, which showed more toxicity than paeonol. However, there are no reports on the nematicidal activity of paeonol carbonyl hydrazone derivatives to control Heterodera glycines. Results: We always endeavor to discover and develop biorational natural products-based pesticidal agents, 4 significant intermediates and 21 novel 3/5(3,5)-(di)nitro/chloropaeonol carbonyl hydrazone derivatives were prepared, and their structures well characterized by 1H NMR, HRMS, MS, and mp. Due to the steric hindrance, the substituents on the C=N double bond of all hydrazine compounds adopted E configuration. Results of nematicidal activity revealed that, among all compounds, especially 5-nitropaeonol (5) and 3,5-dinitropaeonol (7) displayed the most potent nematicidal activity H. glycines in vivo with LC50 values of 0.0323 and 0.0367 mg/mL, respectively. Conclusion: It suggested that for the 3/5(3,5)-(di)nitro/chloropaeonol carbonyl hydrazone derivatives, a nitro group introduced at C5 position of 1 was necessary for obtaining the potent compound as nematicidal agents. These preliminary results will pave the way for further modification of paeonol in the development of potential new nematicides.


1959 ◽  
Vol 52 (2) ◽  
pp. 230-237 ◽  
Author(s):  
D. J. C. Jones

1. Four varieties of marrow stem kale, three of thousand headed kales, Hungry Gap Kale and Rape-Kale were grown at three centres in mid-Wales. They were sampled in the early winter period and separate leaf and stem samples analysed for the proximate constituents and minerals.2. Leaf to stem ratios were measured on both a green and dry matter basis and the latter values used to calculate whole plant values for the chemical constituents.3. The leaves of the marrow stem kales were higher in dry matter than the stems, except in the case of the Purple Stem Kale. This variety resembled the thousand headed and rape-type kales in having a higher dry matter in the stems. On a dry matter basis, the leaves of all the varieties were richer than the stems in ether extract, crude protein, total ash and all the minerals except potassium and sodium. These elements occurred to a greater extent in the stems of the fleshy stemmed marrow stem kales than in the leaves. The stems were higher in crude fibre and nitrogen-free extractives.4. The leaves of the rape-type kales were higher than those of the other varieties in silica, phosphorus and potassium. They were the best source of phosphorus on a whole plant basis. The marrow stem kales had considerably higher leaf and stem values for sodium and were markedly superior to the other varieties as a source of the element.


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