Changes in physico-chemical characteristics of mandarin (common Mediterranean cultivar) Chiotiko (Citrus deliciosa Tenore) from Chios Island in Greece - evaluation of antioxidant capacity and flavonoid content of citrus peels

2013 ◽  
Vol 3 (2) ◽  
pp. 190 ◽  
Author(s):  
Theodoros Varzakas ◽  
X. Stampelos ◽  
E. Manolopoulou
Keyword(s):  
Antioxidant Capacity ◽  
Chemical Characteristics ◽  
Flavonoid Content ◽  
Physico Chemical ◽  
Citrus Peels ◽  
Citrus Deliciosa

scholarly journals Sensorial, Melissopalynological and Physico-Chemical Characteristics of Honey from Babors Kabylia’s Region (Algeria)

Foods ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 225
Author(s):  
Asma Ghorab ◽  
María Shantal Rodríguez-Flores ◽  
Rifka Nakib ◽  
Olga Escuredo ◽  
Latifa Haderbache ◽  
...  
Keyword(s):  
Sensory Properties ◽  
Chemical Components ◽  
Chemical Characteristics ◽  
Pollen Spectrum ◽  
Botanical Origin ◽  
Flavonoid Content ◽  
Chemical Parameters ◽  
High Tendency ◽  
Physico Chemical ◽  
Pollen Types

This study aimed to characterize the honeys of Babors Kabylia through sensory, melissopalynological and physico-chemical parameters. Thirty samples of honey produced in this region were collected over a period of two years and analyzed. All the samples presented physico-chemical parameters in conformity with legislation on honey quality, with few exceptions, linked mainly to beekeeping management. The pollen spectrum revealed a great diversity with 96 pollen types. The main pollen types were spontaneous species as Fabaceae (Hedysarum, Trifolium, Genisteae plants), Asteraceae plants, Ericaceae (Erica arborea L.) or Myrtus and Pistacia. The sensory properties of samples showed a high tendency to crystallization, the colors were from white to brown, but most of them had gold color. Smell and odor corresponded mainly to vegetal and fruity families and in taste perceptions besides sweetness highlighted sourness and saltiness notes. Seventeen samples were polyfloral, one was from honeydew and twelve were monofloral from heather, genista plants, sulla, blackberry or Asteraceae. Heather and the honeydew samples showed the darkest color, the highest electrical conductivity and phenol and flavonoid content. A statistical analysis based on the most representative pollen types, sensory properties and some physico-chemical components allowed the differentiation of honey samples in terms of botanical origin.

scholarly journals Physico‐chemical characteristics and antioxidant capacity of chickpea and wheat flour blends

2019 ◽  
Vol 33 (S1) ◽  
Author(s):  
Jiwan S. Sidhu ◽  
Tasleem A. Zafar ◽  
Abdulwahab S. Almusallam ◽  
Muslim Ali ◽  
Amani Al‐Othman
Keyword(s):  
Antioxidant Capacity ◽  
Wheat Flour ◽  
Chemical Characteristics ◽  
Physico Chemical ◽  
Flour Blends

scholarly journals Effect of Drying Methods on the Physico-chemical Characteristics and Antioxidant Capacity of Taro, Sweetpotato, Stevia and Malunggay Leaves

2017 ◽  
pp. 88-99
Author(s):  
Inish Chris Mesias ◽  
Julie Tan ◽  
Daniel Leslie Tan ◽  
Benjamin L. Cinto
Keyword(s):  
Antioxidant Capacity ◽  
Bulk Density ◽  
Water Activity ◽  
Enzymatic Browning ◽  
Chemical Characteristics ◽  
Drying Methods ◽  
Solar Drying ◽  
Rehydration Ratio ◽  
Sun Drying ◽  
Physico Chemical

Fresh leaves are sensitive to high temperature so that appropriate drying method should be selected to dry leaves. This study aimed to determine the effect of drying methods on the physico-chemical characteristics and antioxidant capacity of taro (Colocasia esculenta), sweetpotato (Ipomea batatas), stevia (Stevia rebaudiana), and malunggay (Moringa oleifera) leaves. Fresh, healthy and mature leaves of taro, sweetpotato, stevia, and malunggay were subjected to solar drying, mechanical drying, and sun drying. The parameters evaluated in this study included moisture content, rehydration ratio, bulk density, water activity, total chlorophyll, antioxidant capacity, and non-enzymatic browning. Results showed that solar drying obtained the highest moisture removal capacity, rehydration ratio and water activity reduction while sun drying had the least. However, it was also with solar drying that the degree of non-enzymatic browning was the highest. Minimum bulk density was attained using solar and mechanical drying. In terms of chlorophyll content, mechanical drying had the highest. No apparent difference at p<0.05 between solar and sun drying methods was observed in terms of their effects on chlorophyll retention and antioxidant capacity. Variable effects of the different drying methods include little or no change, significant declines or enhancement of the leaves' physico-chemical and antioxidant attributes.

scholarly journals Effect of Grafting on the Production, Physico-Chemical Characteristics and Nutritional Quality of Fruit from Pepper Landraces

Antioxidants ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 501 ◽  
Author(s):  
Ramón Gisbert-Mullor ◽  
Costanza Ceccanti ◽  
Yaiza Gara Padilla ◽  
Salvador López-Galarza ◽  
Ángeles Calatayud ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Nutritional Quality ◽  
Bioactive Compound ◽  
Chemical Characteristics ◽  
Maturity Stage ◽  
Green Fruit ◽  
Physico Chemical ◽  
Nutritional Characteristics ◽  
Discriminant Analyses

Grafting is a widely utilized agronomical technique to improve yield, disease resistance, and quality of fruit and vegetables. This work aims to assess the effect of grafting and fruit ripening on the production, physico-chemical characteristics, and nutritional quality of fruit from Spanish local pepper landraces. Landraces “Cuerno,” “Sueca,” and “Valencia” were used as scions, and “NIBER®” as the rootstock. Two ripening stages of the fruits were sampled: green and red. Grafting improved the yield and marketable quality and did not negatively influence the physico-chemical and nutritional characteristics of the fruit. It was noteworthy that the bioactive compound contents and antioxidant capacity were more related to maturity stage and genotype, and red fruit had a higher antioxidant capacity than green fruit. However, in all the scions, grafting significantly enhanced lycopene content in both red and green fruit. Another important effect of grafting was the volatile compound composition evidenced by discriminant analyses, which was characterized for the first time in the fruit of these landraces. The rootstock and scion combination could be a way to improve not only the production, but also the fruit quality of peppers.

Study of Physico-chemical Characteristics and Pharmacological Effects of 1-Ethyl-Salicyldene-bis-Ethylene-Diamine and Its Complex with Mn(II)

2019 ◽  
Vol 70 (7) ◽  
pp. 2534-2537
Author(s):  
Gladiola Tantaru ◽  
Mihai Apostu ◽  
Antonia Poiata ◽  
Mihai Nichifor ◽  
Nela Bibire ◽  
...  
Keyword(s):  
Schiff Base ◽  
Chemical Structure ◽  
Antimicrobial Activities ◽  
Ethylene Diamine ◽  
Chemical Characteristics ◽  
Gram Negative Bacteria ◽  
Pharmacological Effects ◽  
Physico Chemical ◽  
Anti Inflammatory ◽  
Inflammatory Effect

The paper presents the synthesis of a new complex combination of a Bis-Schiff base with Mn(II) ions with great potential for antimicrobial and anti-inflammatory activity. A new complex of the Salen-type ligand, 1-ethyl-salicylidene-bis-ethylene diamine was synthetized using Mn(II) ions. The chemical structure was confirmed through 1H-NMR and IR spectroscopy. The antimicrobial activities of the Bis-Schiff base and its complex were tested in comparison with Ampicillin, Chloramphenicol, Tetracycline, Ofloxacin and Nystatin. Those compounds were found to be active against Gram-positive or Gram-negative bacteria, and had an anti-inflammatory effect comparable to that of Indomethacin.

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