Example from the Hansard archive. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Preservatives can expand the shelf life of food and can lengthen the time long enough for it to be harvested, processed, sold, and kept in the consumer’s home for a reasonable length of time. Contains Parliamentary information licensed under the Something used to preserve, especially a chemical added to foods to inhibit spoilage. Tending to preserve or capable of preserving. From the Sodium nitrite exerts its preservative effect by inhibiting the growth of several undesirable microorganisms, including It is generally accepted that weak acids operate as We use cookies to help provide and enhance our service and tailor content and ads. Maintaining or creating nutritional value, texture and flavor is an important aspect of food preservation, although, historically, some methods drastically altered the character of the food being preserved. From the Clear explanations of natural written and spoken English Example from the Hansard archive. Sorbic acid is alleged to react with the sulfhydryl groups of fumarase in catalase-positive bacteria, molds and yeasts, and aspartate, succinic, and yeast alcohol dehydrogenase. In brine-salted cheeses, a salt gradient (outside higher, inside lower) exists at the beginning of ripening, which decreases relatively slowly during ripening. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. Sorbic acid is reported to react with the sulfhydryl groups of enzymes, such as fumarase, aspartase, succinic dehydrogenase, catalase, and peroxidases in bacteria, molds, and yeasts. Certain preservatives could also exert specific effects on metabolic enzymes. From the in Thai {{#verifyErrors}} Nitrite inhibits active transport of proline in On the basis of this information, it is concluded that there are presently no public health and safety concerns from the consumption of BHA or BHT in food at the permitted levels.

The sentence contains offensive content. They pass from an external environment of low pH (where the equilibrium favors the undissociated molecules) to the cytoplasm, which is of high pH (where the equilibrium favors the dissociated molecules). Food additives can be derived from plants, animals, or minerals, or they can be synthetic. The undissociated lipophilic acid molecules are capable of moving freely through the membrane. In food, the ionic composition is determined largely by concentration and pH, but it is generally impossible to predict this accurately for any given situation.

in Chinese (Traditional) The preservatives are used, naturally, in storage and for the preservation of food ready for the consumer. in Czech Preservatives are not designed to kill microorganisms in substrates already supporting a massive germ population. Contains Parliamentary information licensed under the in Portuguese das Konservierungsmittel… conservateur, agent de conservation… Example from the Hansard archive.

in Russian Such preservatives are intended as may be necessary to prevent the mixture from decaying. 0 && stateHdr.searchDesk ? View. konserveringsmiddel…

（木材的）防腐劑，保護劑, （食品）防腐劑，保鮮劑… Contains Parliamentary information licensed under the See more. The toxicity can come from the food we eat, nine-tenths of which contains colouring, flavouring, preservatives and other additives. In general, preservation is implemented in two modes, chemical and physical. It also alters membrane permeability of the microbial cell. They are only allowed where there is a proven need; for example, preservatives are needed to protect against serious microbiological risks such as botulism.

(Cookery) something that preserves or tends to preserve, esp a chemical added to foods to inhibit decomposition[1350–1400; Middle English < Middle French < Medieval Latin] the action of preserving or the state or process of being preserved. Benzoate inhibits enzymes in oxidative phosphorylation and at various stages in the tricarboxylic acid cycle.PRESERVATIVES | Permitted Preservatives – Sulfur DioxideScienceDirect ® is a registered trademark of Elsevier B.V.

in Vietnamese If wood preservatives are needed, the note suggests that assessment is necessay to select which approved pesticide should be used. n something that... Preservative - definition of preservative by The Free Dictionary. Example from the Hansard archive.

Antimicrobial agents inhibit the growth of spoilage and pathogenic microorganisms in food. In doing so, it diverts the energy from growth-related functions and hence both the growth rate and yield of the cell fall.

You can also find related words, phrases, and synonyms in the topics:If you say that someone is grown up, you mean that they are an adult or that they behave in a responsible way.

preservative definition: 1. a substance used to prevent decay in wood: 2. a chemical used to stop food from decaying: 3. a….