To pull this off they stack tomatoes in large warehouses on palates and pump
in ethylene gas (a naturally occurring gas created by vegetation, in this case created by petroleum) to trick the tomatoes into ripening.
Chemical hazards found
in ethylene glycol antifreeze, paint thinner, drain cleaners and pool / spa chemicals form a substantial danger to pets.
Chemical hazards — found
in ethylene glycol antifreeze, paint thinner, drain cleaners and pool / spa chemicals — form a substantial danger to pets.
Characterization of one of the targets of this translation regulatory machinery, the ethylene signaling component EBF2, indicates that the signaling molecule EIN2 and the nonsensemediated decay proteins UPFs play a central role
in this ethylene - induced translational response.
When hot weather hits a wheat field an increase
in ethylene levels can lessen the amount of grains produced on ears or spikes by limiting the export of carbohydrates to pollen development.
The unpaired electron naturally seeks another and finds a convenient target in the double bond between the carbon atoms
in the ethylene molecule.
Specifically, the paper shows that a key signaling molecule, EIN2, is an essential component
in the ethylene - response process.
«They reduced the amount of acetylene
in ethylene down to less than 2 parts per million (ppm), which is lower than the 5 ppm that polyethylene manufacturing requires,» said NIST materials scientist Wei Zhou.
With a little chemical nudging those carbon atoms release one bond, allowing each to reach out and grab the carbon
in another ethylene molecule.
The paper bag will hold
in the ethylene gas, allowing those green tomatoes to ripen more quickly.
Not exact matches
Food safety officials
in Telangana conducted a surprise raid at Kothapet fruit market, Hyderabad unearthing the rampant use of
ethylene powder, a toxic chemical imported from China, and other carcinogenic chemicals to artificially ripen mangoes.
Ethoxylated ingredients (made with petrochemical
ethylene oxide that results
in a trace contaminant which is classified as a possible carcinogen)
More moisture also means more gases, like
ethylene, which speed up ripening and spoilage
in fruits and vegetables.
The latest systems are constructed of polyethylene with a barrier material of
ethylene vinyl alcohol (EVOH) copolymer
in order to hold wine without impairing its quality.
The plant is DuPont's largest manufacturing site
in Texas and makes high performance
ethylene copolymers, such as Surlyn ® ionomer resin and Vamac ®
ethylene acrylic elastomers, which are used for packaging, automotive components, construction materials and other everyday items.
Mature green tomatoes give off a gas, called
ethylene, which aids
in the ripening process.
If you have some leftover avocados from your Cinco de Mayo fiesta, time is ticking and the
ethylene gas * is
in overdrive.
The developers» experience
in the sector has given them a better understanding of the transport and storage process and the problems that may occur, resulting
in a new, patented version of the
ethylene filter (image) that that prevents staining
in refrigerated containers and maximises filter efficiency.
It can also be used to keep food fresh by adsorbing
ethylene gas - try placing it
in your fruit bowl and your fruit will stay fresher for longer.
Not just
in space but even here on Earth, supermarkets, cold storage warehouses and food processors are all concerned about reducing
ethylene gas that ultimately shortens; the shelf life, storage life, and home life of their products.
Comprised of carbon and hydrogen,
in closed growing environments, like on a spacecraft or
in a terrestrial greenhouse or a land - base perishable cooler,
ethylene builds up rapidly and causes plants to mature too quickly.
Tip: Place an underripe avocado
in a paper bag so its natural
ethylene gas will help it ripen.
To ripen your kiwifruit if it's very hard, pop it
in a paper bag with a ripe banana and the
ethylene gas the banana produces should soften up the kiwi fruit within a day or two.
Instead, put tomatoes
in a sealed paper bag with or without
ethylene - producing fruit such as bananas.
These substances are associated with with the latex / fruit allergy syndrome and they increase
in avocados that have been treated with
ethylene gas to encourage them to ripen more quickly.
This then hastens the ripenening process — and you can speed things up further still by placing ANOTHER
ethylene - producing item (like a banana)
in the bag, too!
Stefanik prides herself on raising substantial dollars from small upstate donors, as well as expending substantial quantities of shoe leather (or,
in her case, Nike
ethylene vinyl acetate) to meet voters face - to - face.
Ma works at Dow Chemical's
ethylene - processing plant
in Fort Saskatchewan,
in northern Alberta.
Sitting on an 850 - hectare manufacturing site, Dow Chemical's Fort Saskatchewan location is the second largest
ethylene - producing facility
in the world, after a neighbouring facility
in Alberta, also owned by Dow.
When the team induced expression of the corresponding gene
in the leaves of two other plant species (one closely related to S. lycopersicum and the other more distantly related), both plants reacted to presence of the C. reflexa peptide with increased production of
ethylene, and exhibited increased resistance to C. reflexa infestation.
In order for Dow to continue to operate its
ethylene furnaces, the company need to have a license.
The image at right depicts a cold jet of
ethylene (a hydrocarbon similar to that found
in automotive gasoline) combusting
in hot air.
The research team — including graduate student and first author Jeffrey Fisher, postdoctoral fellow Songkil Kim and senior research engineer Peter Kottke — used low volatility solvents such as
ethylene glycol, dissolving a salt of silver
in the liquid.
A study, published
in the journal Nano Energy, showed that the new catalyst can efficiently and selectively convert carbon dioxide to
ethylene, one of the world's most important commodity chemicals.
The discovery of new materials for separating
ethylene from ethane by adsorption, instead of using cryogenic distillation, is a key milestone for molecular separations because of the multiple and widely extended uses of these molecules
in industry.
«We have shown that alumina, which is always present
in zeolites, can easily transform methanol into
ethylene and other hydrocarbons, which can then be converted into carbenium ions
in the pores of the zeolite catalyst,» explains Christophe Copéret, Professor of Surface and Interface Chemistry at ETH Zurich and one of the authors of the study.
Indeed,
in competitive adsorption experiments, the zeolite preferentially adsorbed
ethylene from a mixed stream of
ethylene and ethane.
Blended into three million suns» worth of hydrogen and helium gas are hints of sweetness:
ethylene glycol, the syrupy and toxic mainstay
in antifreeze, and ethyl formate, which has a fruity, lemony scent.
But he warns that the gene could have undesirable side effects
in some plants: «If we indiscriminately make a plant insensitive to
ethylene, we may affect its response to diseases or to pests.»
He's optimistic that the gene will work
in other plants as well, such as broccoli, which
ethylene turns soft and yellow.
In the quest for firmer tomatoes and melons, plant scientists have attempted to prevent plants from producing
ethylene.
In the 1950s, chemists at DuPont found that when they added metals such as molybdenum to organic compounds such as
ethylene and propene, it caused the reactants to change shape.
But here to the devil is
in the detail: A small amount of
ethylene carbonate is required
in current systems to pacify the anode.
The findings, published
in the journal Science, show that materials called metal - organic frameworks (MOFs) can effectively remove the contaminant acetylene from
ethylene, the material from which much of the world's plastic is made.
Materials capable of storing heat include those such as bricks or concrete that slowly release the stored heat, and others such as water or
ethylene glycol that take
in heat when they transform from a solid to a liquid.
Varying the size of the pores by changing the length of the girders allowed the MOFs to filter
ethylene - containing acetylene
in concentrations of anywhere from 1 percent to 50 percent, which are typical
in industry.
The study — conducted by what was then the Texas Natural Resource Conservation Commission, the EPA and more than 40 other public, private and academic institutions — singled out as culprits VOCs such as
ethylene, a flammable gas used mainly
in the production of plastics.
Additionally,
ethylene and ethanol could serve as the building blocks for a range of consumer goods, and CO2 - derived formic acid could be used by the pharmaceutical industry or as a fuel
in fuel cells.
The most likely cause of the added risk is exposure to
ethylene glycol ethers, solvents used
in etching circuit patterns on silicon wafers.
Kathy Rosica of the Chemical Manufacturers Association
in Washington DC, says semiconductor makers mainly use
ethylene glycol monomethyl ether and
ethylene glycol monoethyl ether.