This work responds to the need to find, in a sole document, the affect of oxidative stress at different levels, as well as treatment with antioxidants to revert and diminish the damage. Oxidative ...Stress and Chronic Degenerative Diseases - a Role for Antioxidants is written for health professionals by researchers at diverse educative institutions (Mexico, Brazil, USA, Spain, Australia, and Slovenia). I would like to underscore that of the 19 chapters, 14 are by Mexican researchers, which demonstrates the commitment of Mexican institutions to academic life and to the prevention and treatment of chronic degenerative diseases.
The influence of the colonization with arbuscular mycorrhizal (AM) fungus, Glomus mosseae (Nicolson and Gerdemann), on characteristics of growth, osmotic adjustment compounds and activity of ...antioxidant enzymes in nodules of salt-stressed soybean (Glycine max (L.) Merr.) was studied in this experiment. The pot experiment was arranged as a factorial in randomized complete block design with four replications at greenhouse of College of Agriculture, Tehran University, Iran. Results indicated that the contents of glycine betaine and proline in nodules were higher in inoculated than in noninoculated plants. AM fungal colonization increased the activities of superoxide dismutase, catalase, and peroxidase in the nodules. The results indicate that the AM fungus is capable of alleviating the damage caused by salt stress on symbiotic nitrogen fixation of soybean plants by increasing the accumulation of compatible osmolytes and by increased antioxidant enzyme activity. Consequently, arbuscular mycorrhiza formation highly enhanced the salinity tolerance of soybean plant, which increased symbiotic nitrogen fixation and promoted plant growth.
Among the thousands of naturally occurring constituents so far identified in plants and exhibiting a long history of safe use, there are none that pose - or reasonably might be expected to pose - a ...significant risk to human health at current low levels of intake when used as flavoring substances. Due to their natural origin, environmental and genetic factors will influence the chemical composition of the plant essential oils. Factors such as species and subspecies, geographical location, harvest time, plant part used and method of isolation all affect chemical composition of the crude material separated from the plant. The screening of plant extracts and natural products for antioxidative and antimicrobial activity has revealed the potential of higher plants as a source of new agents, to serve the processing of natural products.
U ovom radu modelirana je i optimizirana antioksidativna aktivnost prema stabilnom DPPH radikalu (AADPPH) i nestabilnim hidroksi radikalima (AA.OH), kao i sadržaj nutraceutika (mononezasićene masne ...kiseline, polinezasićene masne kiseline i askorbinska kiselina) kombuha fermentiranih mliječnih proizvoda s mentom. Napici su proizvedeni dodavanjem 10 % kombuha startera s mentom u mlijeko koje je sadržavalo 0,8, 1,6 i 2,8 % mliječne masti pri 37, 40 i 43 °C. Metodologija površine odgovora (RSM) naznačila je suprotne površine odgovora za AADPPH i AA.OH. Sadržaj polinezasićenih masnih kiselina i askorbinske kiseline, kao najznačajnijih utjecajnih čimbenika, uključeni su u grafičku optimizaciju i utvrđeno je radno područje za proizvodnju napitaka najveće antioksidativne kvalitete: niže temperature i mliječna mast do 1,8 %; više temperature i mliječna mast do maksimalno 1,6 %. Modeliranje antioksidativnih svojstava kombuha fermentiranih mliječnih napitaka s mentom primjenom umjetnih neuronskih mreža, kako je i očekivano, bilo je superiornije u poredbi s RSM.
Obična heljda (Fagopyrum esculentum) i tatarska heljda (Fagopyrum tataricum) su zbog sadržaja fenolnih supstanca otporne na napade štetnika i bolesti, te otporne na UV-B zrake i nepogodne uvjete ...zemljišta. Heljda se često ponaša kao divlja, nekultivirana biljka te je osjetljiva na upotrebu mineralnih gnojiva. Zbog nabrojanih osobina, heljda je pogodna biljka za upotrebu u organskoj poljoprivredi.
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