Chemical Evaluation, Free Radical Scavenging Activities and Antimicrobial Evaluation of the Methanolic Extracts of Corn Silk (Zea mays)

Emmanuel, S.; Olajide, O.O; Abubakar, S.; Akiode, Saheed Olatunbosun; Godwin, Etuk-Udo

doi:10.9734/jamps/2016/28530

Cited by 13 publications

(9 citation statements)

References 10 publications

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“…Corn silk Polyphenols Tannins, saponins, flavonoids, alkaloids, steroids, cardiac glycosides, allantoins, anthocyanins, hesperidin, and resins [19] Phenolic acids Para-aminobenzoic acid (PABA), vanillic acid, p-coumaric acid, chlorogenic acid, protocatechuic acid, caffeic acid, ferulic acid, maizenic acid, hydroxycinnamic acid ester, and 3-O-caffeoylquinic acid [20] Flavonoids Catechin, protocatechin, quercetin, rutin, flavone, 3-hydroxyl, 4-hydroxy, 5-hydroxy, and 7-hydroxy flavones and isoflavones.…”

Section: Phytochemical Components Referencementioning

confidence: 99%

“…Corn seeds contain sugars (16.39-21.20 g/100 g dw), protein (11.46-12.70 g/100 g dw), and crude oil (5.73-6.21 g/100 g dw) [18]. Corn silk contains moisture (9.65-10.4%), protein (9.42-17.6%), fat (0.29-4.74%), ash (1.2-3.91%), dietary fiber (7.34%), and carbohydrates (65.5-74.3%), and good composition of vitamins and minerals as sodium, potassium (28, 1360 mg/100 g dw, respectively), calcium, magnesium, iron, zinc, manganese, and copper (0.1869, 0.1939, 0.005, 0.0165, 0.0109, and 0.0073 mg/g fw, respectively) [3,19,20]. The processed corn silk contains significant amounts of crude fiber (13%), crude protein (13%), and carbohydrates (69%).…”

Section: Introductionmentioning

confidence: 99%

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Phytochemical Composition: Antioxidant Potential and Biological Activities of Corn

Nawaz¹,

Muzaffar²,

Aslam³

et al. 2018

Corn - Production and Human Health in Changing Climate

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Corn seeds are used as a nutritional source for humans, and the stem and leaves are utilized as fodder for cattle throughout the world. Corn silk and corn cob are usually discarded as waste. This chapter highlights the nutritional as well as medicinal importance of various parts of corn plant. All parts of corn plant are good source of a variety of bioactive phytochemical compounds which possess antioxidant potential. The principal phytochemicals present in corn seed and corn silk include polyphenols, phenolic acids, flavonoids, anthocyanins, glycosides, carotenoids, and polysaccharides of biological importance, reducing compounds and some water-soluble vitamins. The presence of these phytochemicals makes corn a medicinal plant which shows various biological activities particularly the antioxidant, antimicrobial, antidiabetic, anti-obesity, antiproliferative, hepatoprotective, cardioprotective, and renal-protective activities. On the account of its high antioxidant potential, all parts of corn plant can be used for the management of oxidative stress and the treatment of various diseases.

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Section: Phytochemical Components Referencementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Phytochemical Composition: Antioxidant Potential and Biological Activities of Corn

Nawaz¹,

Muzaffar²,

Aslam³

et al. 2018

Corn - Production and Human Health in Changing Climate

View full text Add to dashboard Cite

show abstract

“…This extract was prepared freshly every day and given three times a day in a dose of 5 ml / rat by using a stomach tube. Corn silk ethanolic extract (CSEE) was prepared as described by Emmanuel et al (2016) and was given orally in a dose of (400 mg/kg b.wt.) according to Bhaigyabati et al (2012) by a stomach tube.…”

Section: Methods: Preparation Of Corn Silk Powder and Its Extractsmentioning

confidence: 99%

Evaluation of the Efficacy of Corn Silk and Vitamin D on Hyperlipidemia and Obesity in Experimental Rats

Kewawy¹

2018

Journal of Food and Dairy Sciences

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Obesity is one of the health problems that have serious consequences, especially as they have been transformed from individual cases into whole societies. This has resulted in an increase in the prevalence of obesity-related diseases. The current study was conducted to evaluate the therapeutic role of the powder and extracts (aqueous and alcoholic) of corn silk, either alone or in addition to vitamin D on high blood lipids and obesity in the experimental rats as well as an assessment of the nutritional value of corn silk. The biological study was carried out on fifty-four male rats, weighing 150 ± 10 g. They were divided into two main groups: the negative control group (6 rats fed on standard diet for the duration of the experiment) and the rest 48 rats were fed on a high fat diet for six weeks to cause obesity. The fat-fed rats were randomly divided into eight groups (6 rats each), one of them served as a positive control group and the other groups were treated by corn silk as follows; two of them were fortified by corn silk powder and corn silk powder with vitamin D. The other five groups were treated by corn silk tea (aqueous extract), ethanol extract, vitamin D, corn silk tea with vitamin D, and ethanolic extract with vitamin D for six weeks. The results revealed significant decreases in the final weight, percentage of body weight gain and body fat, adiposity index, in addition to serum cholesterol, triglycerides, low density lipoproteins, very low density lipoproteins, atherogenic index, malondialdehyde, leptin hormone and homocysteine. On the other hand, the results showed significant increases in the levels of high density lipoproteins and adiponectin. The treated rats showed a significant improvement in liver fat and improved antioxidant enzymes by a significant increase in the total capacity levels of antioxidants and superoxide dismutase compared to positive control group. The study concluded that the best results obtained were for the groups that were treated by the corn silk, either powder or extract, with vitamin D. Therefore, the study recommends by consumption of corn silk extract whether aqueous or alcoholic with vitamin D as a syrup, as well as in fortification of some food products for obese people or those with hyperlipidemia.

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“…A blank was prepared in the same manner and poured into a polyproplene bottle. The samples were analysed for metals on Thermo Scientific iCE 3000AA02134104 Atomic Absorption Spectrometer using appropriate working standards (Emmanuel et al, 2016). Phosphorus was determined by vanadomolybdate colorimetric method (Ologhobo and Fetuga, 1983) Data Analysis All data generated were analyzed using descriptive statistic as described by Olawuyi (1996).…”

Section: Mineral Analysismentioning

confidence: 99%

Nutrients, phytochemical composition and antioxidant analysis of selected agricultural wastes as potential livestock feed ingredients

Akiode¹,

Fadeyi²,

Falayi³

et al. 2019

Nig J Bas App Sci

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This study was carried out to analyse the proximate, phytochemical composition and antioxidant activity of three agricultural wastes (Melon husk, moringa pod and mango endocarp).The proximate parameters of the samples were determined using the standard analytical method of Association of Official Analytical Chemists. The antioxidant activity was determined by the radical scavenging activity of the methanol extract of samples against DPPH (Sigma Aldrich) by UV-Visible Spectrophotometer at 517 nm. The results revealed that the three samples are high in crude fibre: 51.61% (melon seed husk), 58.10% (moringa pod) and 49.47% (mango endocarp). The crude protein content of the samples ranged from 3.45% to 12.22%. The mineral analysis showed that melon seed husk contains; Ca (14.94 mg/kg), Mg (52.26 mg/kg), Fe (21.2mg/kg), P (106.7 mg/kg), Zn (0.70 mg/kg); moringa pod contains Ca (243.95 mg/kg), Mg (61.44 mg/kg), Fe (3.60 mg/kg), P (33.75 mg/kg), Zn (0.35 mg/kg); mango endocarp; Ca(6.14 mg/kg), Mg (13.00 mg/kg), P (24.25 mg/kg), Zn (0.17 mg/kg). Phytochemical screening of the three samples showed small amount of antinutrient like saponin, oxalate, flavonoid etc. The results obtained from this study indicate that the agricultural wastes may serve as energy and mineral supplier and thus may be utilized as a potential feed ingredient in livestock feed, coupled with their low antinutrient content.

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Chemical Evaluation, Free Radical Scavenging Activities and Antimicrobial Evaluation of the Methanolic Extracts of Corn Silk (Zea mays)

Cited by 13 publications

References 10 publications

Phytochemical Composition: Antioxidant Potential and Biological Activities of Corn

Phytochemical Composition: Antioxidant Potential and Biological Activities of Corn

Evaluation of the Efficacy of Corn Silk and Vitamin D on Hyperlipidemia and Obesity in Experimental Rats

Nutrients, phytochemical composition and antioxidant analysis of selected agricultural wastes as potential livestock feed ingredients

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