Critical Evaluation of Antioxidant and Phenolic Content of Edible Plants

2021 ◽  
pp. 95-101
Author(s):  
Hülya Demir ◽  
Gökhan Biçim
Keyword(s):  
Phenolic Content ◽  
Critical Evaluation ◽  
Edible Plants

scholarly journals Antioxidant and Anti-Obesity Potentials of Korean-Native Wild Vegetables (Allium species)

Horticulturae ◽  
2021 ◽  
Vol 7 (12) ◽  
pp. 541
Author(s):  
Ji Yeon Lee ◽  
Kyung Hye Seo ◽  
Eun Young Lee ◽  
Yun-Jeong Ji ◽  
Yun Ji Lee ◽  
...  
Keyword(s):  
Caffeic Acid ◽  
High Performance ◽  
Phenolic Content ◽  
Therapeutic Potential ◽  
Total Phenolic ◽  
Edible Plants ◽  
Allium Species ◽  
Wild Vegetables ◽  
New Crops ◽  
Dpph Scavenging

Four Korea-native wild vegetables belonging to the Allium genus (Allium tuberosum Rottl., Allium senescens L., Allium thunbergii G. Don., and Allium sacculiferum Maxim.) were investigated for their antioxidant and anti-obesity potential, in order to promote the utilization of wild edible plants for the development of potential new crops. In this study, we compared the antioxidant activity of the plant extracts by ABTS+ and DPPH scavenging method. We then compared the anti-adipogenic effects of the extracts in adipocytes. We quantified the phenolics in the extracts using high-performance liquid chromatography (HPLC) to identify the bioactive compounds. A. tuberosum and A. sacculiferum had a higher total phenolic content (19.0 ± 0.3 and 19.6 ± 0.7 mg GA/g extract, respectively) than A. senescens and A. thunbergii (16.0 ± 0.2 and 14.5 ± 0.7 mg GA/g extract). Caffeic acid, an antioxidant and anti-adipogenic compound, was detected in A. tuberosum and A. sacculiferum, but not in A. senescens and A. thunbergii. A. tuberosum, and A. sacculiferum showed superior antioxidative and anti-adipogenic activities compared to A. senescens and A. thunbergii. Therefore, A. tuberosum and A. sacculiferum, both of which contain antioxidant and anti-adipogenic phenolics, such as caffeic acid, present a therapeutic potential against obesity. Various phenolic compounds, which have been found to differ among Allium spp., may partially account for differences among the Allium spp. with respect to their antioxidant and anti-obesity effects.

scholarly journals Opportunities of spontaneous edible plants collected in southern Italy (Campania Region) as functional food

2019 ◽  
Vol 14 (4) ◽  
pp. 248-258
Author(s):  
Enrica De Falco ◽  
Rossana Zanti ◽  
Antonello Senatore ◽  
Antonella Vitti
Keyword(s):  
Nutritional Value ◽  
Southern Italy ◽  
Phenolic Content ◽  
Natural Habitat ◽  
Food Plants ◽  
Wild Plants ◽  
Edible Plants ◽  
Dietary Intakes ◽  
Campania Region ◽  
Rubus Ulmifolius

In most countries the historical-cultural heritage also refers to the foods traditionally consumed. Southern Italy maintains a strong tradition of dishes based on wild plants, considered an important dietary foundation. Despite this, the nutritional properties and nutraceutical value of some of these plants are little known and, therefore, need to be investigated. Sixteen spontaneous species, traditionally used as food plants, were collected from their natural habitat in four different areas of Campania Region, and their phenolic content and nutritional value were determined according to European model of food labelling. The species analysed resulted quite homogeneous regarding the nutritional value, as demonstrated by cluster analyses. Energy values were always low. Minerals content (especially calcium and potassium) and phenols differed among the species, the sodium-potassium ratio was almost always <0.49, and phenolic content was very high for Rubus ulmifolius. Many of the wild edible plants under study may be considered a good source to dietary intakes of minerals. The species examined showed contents of nutrition values and total phenols useful for preparing mixed soups or salads in order to gain a balanced nourishment. The wild species under study can become a source of new quality horticultural products due to their nutritional and nutraceutical components.

Electron Microscopy of Metal-Matrix Composites

1970 ◽  
Vol 28 ◽  
pp. 404-405
Author(s):  
A. Lawley ◽  
M. R. Pinnel ◽  
A. Pattnaik
Keyword(s):  
Electron Microscopy ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Critical Evaluation ◽  
Elastic Behavior ◽  
Matrix Composites ◽  
Directionally Solidified ◽  
Fracture Characteristics ◽  
Broad Program

As part of a broad program on composite materials, the role of the interface on the micromechanics of deformation of metal-matrix composites is being studied. The approach is to correlate elastic behavior, micro and macroyielding, flow, and fracture behavior with associated structural detail (dislocation substructure, fracture characteristics) and stress-state. This provides an understanding of the mode of deformation from an atomistic viewpoint; a critical evaluation can then be made of existing models of composite behavior based on continuum mechanics. This paper covers the electron microscopy (transmission, fractography, scanning microscopy) of two distinct forms of composite material: conventional fiber-reinforced (aluminum-stainless steel) and directionally solidified eutectic alloys (aluminum-copper). In the former, the interface is in the form of a compound and/or solid solution whereas in directionally solidified alloys, the interface consists of a precise crystallographic boundary between the two constituents of the eutectic.

Critical evaluation of permeation enhancers for oral mucosal drug delivery

2009 ◽  
Vol 00 (00) ◽  
pp. 090810030148087-29
Author(s):  
Harmik Sohi ◽  
Alka Ahuja ◽  
Farhan Jalees Ahmad ◽  
Roop Krishen Khar
Keyword(s):  
Drug Delivery ◽  
Critical Evaluation ◽  
Permeation Enhancers ◽  
Mucosal Drug Delivery
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