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This study was performed in laboratory scale and consisted of the
using of aqueous Opuntia dillenii solution for the clarification of very turbid surface water (Turbidities
varying between 186 NTU and 418 NTU). This plant from Cactaceae family was used as a natural coagulant for the different
clarification tests. The preliminary phytochemical Screening of the powder of this plant showed that it contains tanins,
saponins and mucilages. Flocculation and coagulation tests showed that Opuntia dillenii can be used in highly
turbid water treatment. The removal efficiency varied from 89% to 93% for the
turbidity and suspended solids, and from 4% to 15% for the obvious color in
water when we used the optimum values of this natural coagulant (1 mL to 10
mL). The successive addition of this natural coagulant and the lime, gave a
better elimination of turbidity and suspended solids, and a good reduction for
the color. The removal efficiency of the turbidity and suspended solids became
more than 95% and the one of the color between 67% and 94%.
Opuntia joconostle fruit is a rich source of biocompounds such as polyphenols including gallic, vanilic, 4-hidroxybenzoic, cafeic, and syringic acids, catechin, epicatechin, rutin, and vanillin, besides betalains. The objective of this research was to evaluate the effect of supplementation polyphenols-rich extracts from different parts of Opuntia joconostle against carbon tetrachloride-induced oxidative stress in a mouse model. The animals were treated orally with polyphenols-rich extracts at 50, 100 and 200 mg/kg BW for 30 consecutive days. On day 30th the mice received carbon tetrachloride (CCl4) as hepatoxic agent. Biochemical evaluations were carried out 24 h after induction of the oxidative stress. Data showed that methanolic extracts from different parts of Opuntia joconostle exerting protective effect against the CCl4-induced oxidative stress in mice. Histology examination revealed that the damage decreased in groups treated with polyphenols-rich extracts compared to the group that did not receive any treatment. Opuntia joconostle fruit contains many phenolic compounds, flavonoids and betalains. The protective effect of extracts may be related to the phenolic composition and also by a counteraction with other compounds, such as betalains and flavonoids that increase their antioxidant effect.
play an important role in the survival of plants on poor soils. Planting seeds
into lunar soil at a lunar colony will be a challenge for seeds of any plant.
The seeds will need a special microbial “tool kit” that will help them germinate
and the young seedlings establish themselves. In this study, seeds of the prickly
pear cactus, Opuntia ficus-indica, were chosen to examine the presence of
fungus spores in the soil, inside the seeds and after germination in the
rhizosphere, roots and other tissues of the young seedlings. The nutrient poor
lunar regolith simulant JSC-1A was used as autoclaved or untreated growth
medium. The mycorrhizal fungus Trichoderma
viride was predominantly identified on the roots of new seedlings. This
fungus also demonstrated the strongest effect on the germination rate of the
seeds in comparison with other fungi isolated from the rhizosphere of Opuntia plants. T. viride was not detected within seeds and also not within
seedlings, besides the root tips, whereas an arbuscular mycorrhizal Glomus species was seed-borne and
present throughout most of the seedling. A close association between T. viride and a Glomus species associated with O.