This study aims to investigate whether the heat treatment applied during the production of black onion, a novel derived product made from fresh onion, produces changes in the content of flavonoids, organosulfur compounds, organic acids, water soluble sugars and amino acids in three onion varieties ('Shallot', 'Chata' and 'Echalion'). The total flavonoid content decreased up to 12-fold in black onions compared with fresh onions while the quantities of isoalliin, the main organosulfur compound in black onions, drastically increased during the process. Moreover, the levels of fructose and glucose significantly increased during the elaboration process, contributing to the sweetness of black onions. The influence of heating on their antioxidant capacity showed a decreasing trend of the ORAC antioxidant activity of onion, while ABTS and DPPH did not show a clear tendency. These results present a comprehensive phytochemical characterization of black onions, highlighting the significant influence of the heating process on their phytochemical composition.
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http://dx.doi.org/10.1016/j.foodchem.2019.125958 | DOI Listing |
Curr Ther Res Clin Exp
October 2024
Faculty of Medicine, University of Khartoum, Khartoum, Sudan.
Background: The coronavirus disease 2019 (COVID-19) emerged in China in late 2019 with high rate of spread and transmission. As there was no recognized therapy many people worldwide used herbs in attempt to help their body overcome the disease.
Objective: This study aims to evaluate the use of herbs by patients with COVID-19 in Sudan and tries to identify a possible role in cure or lowering the severity of the illness.
J Environ Manage
December 2024
CESAM - Centre for Environmental and Marine Studies & Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
The use of insects in organic management systems is expanding due to their ability to recycle waste into valuable co-products for agriculture, notably frass, constituted by the insect's excrements, larval exuviae, and remaining undigested feedstock. This study aimed to assess the effects of different application rates of frass (0.16, 0.
View Article and Find Full Text PDFPathogens
September 2024
School of Biological Sciences, Universiti Sains Malaysia (USM), Penang 11800, Malaysia.
The genus contains several species that are important plant pathogens. Plant pathogenic spp. affect agricultural crops in the field as well as after harvest, often associated with corn ear rot, cotton boll rot, peanut yellow mold, black mold of onion and garlic, fruit rot on grapes, pomegranates, olives, citrus, and apples.
View Article and Find Full Text PDFLangmuir
September 2024
Department of Molecular & Macromolecular Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
In this study, photonic balls─spherical aggregates of submicrometer-sized silica particles with uniform particle size─were investigated as structural colored materials. The structural color of these photonic balls is influenced by the ordered arrangement of the silica particles. The research focused on how the addition of electrolytes, specifically NaCl, affects the formation of photonic balls to achieve the desired structural color.
View Article and Find Full Text PDFJ Dig Dis
May 2024
Department of Gastroenterology, Peking University Third Hospital, Beijing, China.
Objectives: Irritable bowel syndrome (IBS) is a common disorder in gut-brain interaction. Diet plays an important role in the pathophysiology of IBS. Therefore, we aimed to explore the potential causal effects of food-liking on IBS to provide better diet advice for patients.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!