Influence of hot water and molybdenum dips on the production of total antioxidants during cold storage of lemon and their ability of such to scavenge reactive oxygen species. In: Deng X, Xu J, Lin S, Guan R (eds), Proceedings of the International Society of Citriculture: 11th International Citrus Congress, 26–30 October 2008, Wuhan, China.
Biodiesel is composed of the monoalkyl esters produced from a variety of animal fats or vegetable oils, which can be used in blends with conventional petroleum diesel in existing diesel engines. While having many desirable properties, poor oxidative and storage stabilities are a source of considerable concern. This paper presents results of …
The results suggest that energy availability is linked to ROS production and antioxidant capacity in apples and thus affects postharvest CO 2 tolerance. Under this assumption, the increased ATP content of the bagged fruit stored at 4 kPa O 2 /5 kPa CO 2 on day 1 may explain the enhancement in antioxidant capacity on the same day.
Interest in the consumption of fresh fruits and vegetables is, to a large extent, due to its content of bioactive nutrients and their importance as dietary antioxidants. Among all of the selected fruits and vegetables, strawberries and black grapes have relatively high antioxidant capacities associated with high contents of total phenolic …
Antioxidants act as a cooperative network, employing a series of redox reactions. Interactions between ascorbic acid and glutathione, and ascorbic acid and phenolic compounds are well known. Under oxygen deprivation stress some contradictory results on the antioxidant status have been obtained.
Intensity of (a) metabolic heat production, (b) respiration, and (c) energy storage rate in the apices of underground shoots of Achillea millefolium at different stages of morphogenesis. Different letter symbols above the columns indicate the statistical significance of differences between indicators at different stages of rhizome development …
Abstract: Antioxidants are affected mainly by oxidation, less by pyrolysis and hydrolysis under seed and crude oil processing and during culinary operations. Chemical …
A Box–Behnken design (BBD) was used to assess the impact of microwave-assisted extraction (MAE) variables (temperature, time, extraction volume, …
Oxidative stress designates an imbalance between ROS production and antioxidants []. ROS molecules are produced in the majority of body cells as a result of mitochondrial aerobic metabolism, cytoplasmic enzymatic reactions, or from exogenous oxidant sources (e.g., X-rays, pollutants, cigarette smoking) [ 72, 73 ], and ROS …
In addition, the applications of these antioxidants in food systems are discussed, and gaps, future challenges, and opportunities in this field are highlighted. In conclusion, various food items can be considered promising sources to obtain these novel antioxidant peptides, which present various opportunities for food applications in addition …
These studies address current challenges and topics related to the antioxidant properties of foods and natural products, including the antioxidant activity of …
The early increase in energy storage modulus may be attributed to polymer molecular chains and annealing effects during high-temperature aging. When the aging time was beyond 10 days, the decomposition of molecular chain …
Antioxidants inhibit a process called oxidation, which generates free radicals that leads to cellular damage. Antioxidants safely interact with free radicals, neutralizing them before they can ...
Over recent years, studies have revealed that the aging of post-harvest fruit may be caused by low cellular energy production efficiency and insufficient energy supply [54,55,56]. Generally, ATP produced by mitochondria is …
The biological effects of oxidative stress and associated free radicals on farm animal performance, productivity, and product quality may be managed via dietary interventions—specifically, the provision of feeds, supplements, and forages rich in antioxidants. To optimize this approach, it is important first to understand the …
Fat-derived ATP production is designed to provide a ''helper fuel'' during exercise, with a maximum amount of energy at power outputs of ~60–65% VO 2 max 65.
Mitochondrial reactive oxygen species (ROS) can be either detrimental or beneficial depending on the amount, duration, and location of their production. Mitochondrial complex I is a component of the electron transport chain and transfers electrons from NADH to ubiquinone. Complex I is also a source of ROS production. …
Intracellular antioxidant enzymes and intake of dietary antioxidants may help to maintain an adequate antioxidant status in the body. In the past decades, new …
A state-of-the-science compilation, Lipoic Acid follows the history of this potent coenzyme and the latest discoveries regarding the chemistry, biological action, and significance in energy production, antioxidant activity, and health. The book is divided into three sections: · Section I: Discovery and Molecular Structure reviews the early ...
On average, plant foods contain 64 times more antioxidants than animal foods. As the researchers put it, " [A]ntioxidant rich foods originate from the plant kingdom while meat, fish and other foods from the animal kingdom are low in antioxidants….". Antioxidant-rich diets appear to protect against stroke and may also help decrease artery ...
Under certain conditions, endogenous antioxidants are unable to neutralize oxidative stress; in this case, exogenous antioxidants can be used to augment the body''s antioxidant systems. Thus, in addition to reducing the levels of oxidative stress common in many chronic diseases, antioxidants can also serve as an adjuvant to …
Antioxidant plays important roles in cellular function and has been implicated in processes associated with aging, vascular and inflammatory damage, and cancer. Ascorbic acid is a water-soluble essential vitamin with antioxidant properties found in both animals and plants but cannot be synthesized by humans and must be obtained …
Heat Stress (HS) increases body temperature and causes a subsequent reduction in feed intake. This reduction results in the loss of essential nutrients, such as amino acids, which are crucial for ...
and the antioxidant properties. A Box–Behnken design was adopted considering total phenolic content (TPC) and ferric reducing antioxidant power (FRAP) as responses.
The objective of the present study was to determine an optimized natural antioxidant formulation, in B100 biodiesel, by the simplex-centroid design, in order to …
Antioxidant activity (Trolox equivalents, µmol (g −1 DM)) of different higher plants and microalgal classes. The antioxidant power of microalgae is comparable, and even higher than, the antioxidative activity of higher plants or fruits ( Table 2 ). In both cases, the variability is high (ranging from ≈4 to 260 Trolox equivalents µmol g ...
could induce the production of phenols in fresh-cut pitaya fruits, enhance antioxidant activity, and reduce the accumulation of active oxygen (H 2O 2 and O 2 −) in the later stage of storage.13 ...
The blue honeysuckle berry is a fruit known as a rich source of many bioactive substances with proven health-promoting effects. Due to its sour taste with a noticeable hint of bitterness, fruits of this plant are rarely consumed and the consumer prefers the processed form. The purpose of this study was to evaluate the effect of the …
Microalgae have become an attractive natural source of a diverse range of biomolecules, including enzymatic and non-enzymatic antioxidants; nevertheless, economically sustainable production of such compounds …
With regard to the antioxidant enzymes, two of the most important ones are superoxide dismutase and catalase, which work together to balance off the production and neutralization of free radicals. Superoxide dismutase catalyzes the dismutation of the superoxide radical into molecular oxygen and hydrogen peroxide.
The loss and/or modification of natural antioxidants during various food processing techniques and storage methods, like heat/thermal, UV, pulsed electric field treatment, drying, blanching and irradiation is well described. Antioxidants in their reduced form are modified mainly by oxidation, and less by pyrolysis and hydrolysis. Thus, they …
Oxidative stress plays a major role in cancer hallmarks like angiogenesis, invasiveness, stemness, and metastatic ability, and hence, reducing oxidative stress with powerful antioxidants has been used as an important strategy for cancer prevention. Additionally, cancer cells develop mechanisms of keeping the increased oxidative stress …
The purpose of this work was to elucidate the influence of TF (5 ± 5 °C, and 5 ± 1 °C) and CT (5 ± 0.1 °C served as an isothermal state) storage environment on the antioxidant ability and energy metabolism in post-harvest apple fruit during storage. Specifically, compared with fruit in TFs groups, the quality attributes of apples in the CT …
We have discovered the significant role played by antioxidants, specifically dithiothreitol and sodium nitrite, in preserving translational activity during …
Better, in some cases, an increase of the antioxidant capacity was observed in the days following their purchase, accompanied by an increase in phenolic …
Free radical scavenging Searching and identifying natural and safe antioxidants, especially of plant origin, have been notably increased in recent years [26, 27].Assays based on the use of O 2 −• and OH, DPPH, ABTS +, and N,N-dimethyl-p-phenylenediamine dihydrochloride cation radical (DMPD +) are among the most popular …
Chilling injury (CI) is a postharvest disorder occurring in the fruit of cold-sensitive Citrus species during storage at low temperatures. This study investigated the involvement of carotenoids and vitamin C, two …
In this review, we focus on how the packaging film affect the release of antioxidant, including the properties of antioxidants and packaging-forming polymers matrices, as well as the loading method of antioxidants.