Sentences with phrase «ph conditions»

The same may also be the case for tolerance to external pH conditions for coastal species, although intertidal species show varied and sometimes positive responses to reduced pH [33,34].

The future pH conditions were chosen to represent the projected near - future conditions anticipated for the end of the twenty - first century (pCO2 approx. 580 — 1080, depending on emission scenarios [69]-RRB-.

Another recent study, by scientists from the U.K., Hawaii and Massachusetts, concluded that «marine and freshwater assemblages have always experienced variable pH conditions,» and that «in many freshwater lakes, pH changes that are orders of magnitude greater than those projected for the 22nd - century oceans can occur over periods of hours.

In addition, they indicate that «a lack of developmental deformities at early stages for pCO2 ~ 1000 ppm has been previously reported for this species...» And they say «there are even reports that survival is increased in this species and its congener S. droebachiensis under some low pH conditions...»... conclude, that «the effects of small magnitude in these urchin larvae are indicative of a potential resilience to near - future levels of ocean acidification.»»

Laboratory testing of marine species also show huge tolerance for a variety ph conditions although certain species are more robust than others.

Active across a broad range of pH conditions (2 to 10) for maximum benefit throughout the entire intestinal tract

By comparison, fulvic acids are soluble in water under all pH conditions.

We investigated their interactive effects on Saccharina japonica (Laminariales, Phaeophyta) under two pH conditions [Low, 7.50; High (control), 8.10] and three NH 4 + concentrations (Low, 4; Medium, 60; High, 120 μM).

These data contribute to building a better understanding of the carbonate system dynamics and coral reefs» key response (e.g., coral growth) to natural low - pH conditions, in upwelling areas in the eastern tropical Pacific and beyond.

«While many branching corals dominate under normal pH conditions offering ample hiding space for the different species of zooplankton, ocean acidification shifts the community to large, massive bouldering corals, which offer the reef - associated plankton little opportunity for hiding».

The authors examined the metabolism of coral larvae under different pH conditions to explain the observed, uniform, survival rate of coral larvae under different pH conditions: pH 8.0 (control), pH 7.6, and pH 7.3.

Augmentation of adenovirus 5 vector - mediated gene transduction under physiological pH conditions by a chitosan / NaHCO3 solution.

Holic, N., Seye, A.K., Majdoul, S., Martin, S., Merten, O.W., Galy, A., Fenard, D.» Influence of mildly acidic pH conditions on the production of lentiviral and retroviral vectors.»

They also observed larval metamorphosis after both short (2 h) and long (7 d) term exposure to reduced pH conditions.

Under certain pH conditions they found that graphene behaves like a polymer — changing shape by itself.

Two groups of urchins were held at different pH levels — one that was low pH, akin to ocean acidification conditions, and another that mimicked normal non-upwelling pH conditions.

«Urchin larvae from females exposed to low pH conditions had more genes turned on and were better prepared to handle stress.

«Instead of spending a lot of time tightly controlling the temperature and pH conditions mussels grow in, I use the natural seasonal variation to try to answer the same questions,» Newcomb said.

The results showed that mussels actually grew fastest at sites with frequent low pH conditions as well as an abundant food supply.

They grew slowest and were most vulnerable to predators in locations exposed to low pH conditions and an inconsistent food supply.

The atomic - scale structures reveal the detailed mechanism of how the toxin / associated - protein complex is assembled and stays intact under acidic conditions, and also how it disassociates when it enters the neutral pH conditions of the blood.

The researchers tested oysters for two months under varying water temperature and pH conditions, including those predicted for oceans in 2100.

«Our findings from sites spanning some 1,000 miles of coastline show that marine life plays a leading role in driving local pH conditions,» Sorte said.

«What is missing is the interaction between temperature and pH. The best working temperature may not be the most optimal pH condition.

Not exact matches

Food chemistry 2014 v. 152 pp. 370 - 377 Abstract This research focuses on the study of polyacetylenes in carrot juice and their response to pH, storage and thermal processing conditions.

This grain - based diet can cause changes in the ph in cows, creating many abnormal physiological conditions in the cow which can increase the need for the use antibiotics.

It delivers high fiber content and exhibits excellent stability with respect to pH, heat and freeze / thaw conditions.

This is a comprehensive microbial management program that included appropriate sanitation practices in the manufacturing facility; knowledge and management of the food product's water activity; and its pH, salt content, processing conditions and other parameters that will affect microbial growth.

BENEO's news functional native rice starch shows high stability during processing and performs well under harsh conditions like low pH, high temperature or high shear, making it ideal for applications like retorted sauces, baby food, dairy desserts and fruit preparations.

During the cultivation process, Lesaffre precisely controls the temperature, pH and «diet» of the yeast in order to create the optimal growing conditions.

The WPI hydrolysate obtained after three hours incubation with alcalase plus two hours with neutrase under pH - spontaneous drop condition possessed the highest ACE - inhibitory activity of 54.30 % and the lowest ash content of 2.95 %,» wrote L. Wang and colleagues, China Agricultural University.

«The effect of alcalase, neutrase, trypsin and their combined system, i.e. alcalase - neutrase and trypsin - neutrase, under two different hydrolysis conditions, i.e. pH - controlled and pH - spontaneous drop, on the formation of ACE - inhibitory peptides and the characteristics of WPI hydrolysate was investigated.

The same result was seen under conditions from pH 3.5 - 5.5 and by adding citric acid / sodium citrate to the jellies.

Guar is also bake - and freeze - thaw stable; pH - stable (3.5 - 10); synergistic with xanthan gum for viscosity; degrades under retort conditions; and has a slight beany / grassy odor.

Low levels of productivity were a direct result of these conditions, but also as a consequence of low levels of organic matter in the soil (between 0.3 and 1 percent), acidity (pH fluctuating between 4.5 and 5) and low biodiversity (only 2 to 7 plant species were found in the agricultural systems and only 1 to 8 species in the forest systems).

Yogurt is rich in lactobacillus, which helps to restore the normal vaginal pH level, helping to prevent the condition from recurring.

These studies show little difference between epidural and nonepidural (usually opiate - exposed) babies in terms of Apgar score and umbilical - cord pH, both of which reflect the baby's condition at birth.78 However, a large - population survey from Sweden found that use of an epidural was significantly associated with a low Apgar score at birth.79

A rapid and inexpensive fluorescence method for screening conditions that affect protein thermal stability, such as protein mutations, ligand binding, and buffer formulations (like pH, salts, detergents, and other additives).

pH is an important condition to sense because a pH too high or too low can cause harm to an organism.

Here, they demonstrate that the worms are averse to a very high pH by showing that the worms avoided areas of the experimental environment where the researchers created highly alkaline conditions.

The next step for Professor Smith's team will involve stabilising the gel drug delivery systems in the very acidic, low pH, conditions found in the stomach so that they can transit safely to the intestine before delivering naproxen just where it is needed.

It had been thought that the presence of cement would result in conditions too alkaline for microbes to grow — it has a pH of around 11, similar to bleach.

Supervised by PhD student Babatunde Okesola, whose research is supported by The Wild Chemistry Scholars Fund, Edward hoped to create gels which could interact with drugs such as Naproxen, and release them at the slightly alkaline pH values found in the intestine rather than the acidic conditions in the stomach.

The device continuously monitors conditions within the microfluidic chip, including oxygen levels, temperature, and pH, to ensure the optimum environment for cell growth.

The team subjects vials of amino acids to extreme temperature, pH, ultraviolet radiation, gamma radiation and other conditions designed to mimic environments on Mars; Enceladus, a moon of Saturn; and Europa, a moon of Jupiter.

WAXS (wide angle x-ray scattering) analysis of the crystalline particles finally formed at ambient conditions shows that pure calcite (the stable polymorph of calcium carbonate) forms at pH - values corresponding to high binding strength in clusters and that predominantly vaterite (the least stable polymorph) and traces of calcite form at pH - values corresponding to low binding strength in clusters (fig.

They found that the mussel byssal threads grown in acidified conditions with a pH lower than 7.6 were 40 percent weaker than normal.

Such knowledge could be used to create fluorescent sensors that can detect diseases and cellular environmental conditions like pH or oxygen pressure.

The tanks held seawater with a range of pH levels reflecting current conditions as well as the lower pH occasionally encountered in Puget Sound when deep water wells up near the surface.

A new study by UC Santa Barbara marine biologists demonstrates that for females of the species (Strongylocentrotus purpuratus), exposure to stressful climate conditions such as low pH levels often makes for hardier, larger offspring.