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In the Irradiation section there is a part that says "and at higher doses inducing sterility". Is this vandalism? If it is not, then I don't understand its meaning and suggest that someone re-word this! —Preceding unsigned comment added by 128.230.9.250 (talk) 13:23, 25 March 2008 (UTC)[reply]
Sorry, I'm not trying to edit-war here! The links you put in do work, but underscores in text are very ugly (they may be hidden by the underlining on your monitorlbut they're not on mine; some people's stylesheets won't underline links at all). Food irradiation is almost always preferable to Food_irradiation (I don't even know why the other one works). As for the other link, I prefer the sentence without a capital letter in the middle, and I think "radiation treatment" fits the sentence better than "food irradiation" (and I linked to the same place). I apologize, though, for my first edit, which broke a link because I misspelled "irradiation". --Andrew 18:18, Feb 15, 2005 (UTC)
can somebody document the claim that "The addition of urine at the time of packing the fish into the ice is said to assist in preservation and to improve the flavour of the food when eaten"? i guess it could be true, but it sounds like a prank. assuming it's true, how many people are "saying" this? 2.5? thanks. SaltyPig 14:54, 23 Apr 2005 (UTC)
Well if Google contained all knowledge then we wouldn't need Wikipedia. Urine doesn't improve the flavour of fish. However, for rural coastal communities in northern Scandinavia, white fish caught in the Autumn is preserved by placing it in holes dug in the snow. The fish is then available throughout the time the sea is frozen over. To preserve it urine is added which increases the pH and helps to reduce the damage that freezing causes to fish flesh. This process is mimiciced in more urban Norway by the practice of treating cod with caustic soda (lye for american readers) which produces what the Norwegians regard as a delicay and the rest of the world has yet to develop a taste for. As to verification, the best way is to travel to north Norway and talk to the inhabitants. Don't denigrate knowledge because it isn't Googled. 195.92.168.175 20:09, 24 Apr 2005 (UTC)
I've taken the liberty of taking it out again because it's original research if it doesn't cite a reliable source. See WP:V. - Taxman Talk 15:45, 16 January 2006 (UTC)[reply]
There is still another method commercially used to preserve food products using high pressure treatments. This may warrant addition to your list. 67.162.160.230 04:32, 9 September 2005 (UTC)MikeG[reply]
What about smoking? Rossfi 03:36, 4 August 2006 (UTC)[reply]
I believe the statement about lye under the pickling section is wrong. In none of the mentioned foods is lye used for preservation. Instead, lye is used to modify the food's taste and texture. In the case of olives it is used to remove the bitter flavor. Notice that the lye is then removed by multiple water baths. In the case of Lutefish and hominy the food is preserved by drying and the food is only soaked in lye, usually right before cooking, to modify its characteristics, but not for preservation. Alephone 03:20, 22 September 2006 (UTC)[reply]
I think there is something useful that could be said about rosemary, etc. added to a sealed sack of carrots, potatos, etc., which seems to work for me.
These plants also seem to keep aphids, etc. from attacking leafy vegetables during growth.
There is an orphaned image that should be considered for addition in this article. A knowledgeable editor should look and the image; it should be deleted if it is not included. Jon513 12:23, 16 November 2006 (UTC)[reply]
The present text is ridiculous, full of speculation, needs to be replaced by a factual description. Dieter E 08:34, 1 August 2007 (UTC)[reply]
I cannot accept the terminology 'bombardment', as it is technically false and loaded with emotions. For your consideration: Is a patient under X-ray exploration bombarded? Are people sitting under some light bombarded? Are people tanning in the sun bombarded? This is all photon irradiation, the same as the treatment or processing of food by ionizing radiation as gamma-rays and X-rays. Furthermore, also the treament by copuscular radiation is not considered as bombardment. For your consideration, are patients in tumor therapy bombarded by high-energy ekectrons, neutron, or even pions and other high-energy corpuscules. Finally, in radiation processing the essential effect is not the impinging of corpuscular or photonic particles, however the dissipation of ionizing energy as a consequence of the incoming radiation. And also the terminology of 'exposure' is technically false, as the beneficial effect is related to the absorption of energy. I am trying a different version and hope for your insight! Dieter E 17:50, 3 August 2007 (UTC)[reply]
bombardment:
I have to come back to the discussion about the most appropriate terminology in explaining the technique of food irradiation. 'Bombardment' is neither technically correct nor explains it the fundamentals of the process, it is just basically misleading. A bomb or a shell is a massive entity which is thrown or dropped to hit and damage by explosion. And bombardment is the activity of using a cannon in the field or an airplane in a bomb-raid. And the terminology of bombardment does not include the description of the damage caused.
The only appropriate terminology for food irradiation is processing food by ionizing radiation. Radiation processing is the terminology accepted in science and industry; and there is an International Meeting on Radiation Processing (www.IMRP2008.com). The clue in radiation processing is that in the matter irradiated ionization is caused which in consequence effects a range of material changes including the beneficial effects in food irradiation.
The general technical term for describing the production, handling, manufacturing of food and other materials is processing and engineering. Hence we understand food processing and food engineering, but not food bombardment. There is no 'radiation bombardment industry'.
The terminology of 'bombardment' might be used for the generation of X-rays (bremsstrahlung) where a target material (tungsten or tantalum) is 'bombarded' by high-energy electrons, the kinetic energy of which is converted mainly into heat and a fraction of X-rays. Gamma rays from radioactive isotopes and X-rays are photons which propagate as viasible light. And it is not suitable to state that sun-tanning is effected by the bombardment by UV-photons.
For this article we should accept the established terminology! Dieter E 16:41, 15 October 2007 (UTC)[reply]
Help wanted: Who could help to make visible the references incorporated in the text for 'irradiation' in a collection at the end of this WIKI-entry?? Dieter E 17:38, 28 August 2007 (UTC)[reply]
Merge from Food storage container into this article
Completing another user's merge.
I do not support the merge. Food preservation is mainly concerned with the underlying mechanisms of extending the shelf-life of foods while food storage come under food packaging.(sudhirkumarjakh@gmail.com) —Preceding unsigned comment added by 110.172.159.122 (talk) 05:32, 16 November 2010 (UTC)[reply]
Why is there no mention in the article of preserving fruit in the form of jam/jelly? There is a section on sugaring, ie crystalized fruit, but this isn't the same thing at all. Obscurasky (talk) 08:38, 21 September 2010 (UTC) I disagree with the notion of merging food storage section with food preservation. In food preservation, we deal with the underlying principles of extending shelf-life of food while food storage containers comes under food packaging section. (sudhirkumarjakh@gmail.com) —Preceding unsigned comment added by 110.172.159.122 (talk) 05:22, 16 November 2010 (UTC)[reply]
Water Activity in foods should be a brief section of this article with a proper link to the wiki of "Water Activity". Activities such as Drying, Salting, Sugaring, Jamming, and "adding preservatives" are all based on reducing Water Activity in food. See links for more information: http://www.cip.ukcentre.com/wa1.htm http://www.crees.org/forms/29.pdf
or simply google "water activity food spoilage" —Preceding unsigned comment added by 69.42.103.8 (talk) 22:24, 12 October 2010 (UTC)[reply]
The table on the right seems very out of place as it merely replicates (albeit not fully) what's already written in the text. The last paragraph of the lede also seems like overkill and would be better pared down to just the most common types of food preservation. Comments anyone? Obscurasky (talk) 18:02, 30 November 2010 (UTC)[reply]
Method | Effect on microbial growth or survival |
---|---|
Refrigeration | Low temperature to retard growth |
Freezing | Low temperature and reduction of water activity prevents microbial growth, slowing of oxidation reactions |
Drying, curing and conserving | Reduction in water activity sufficient to delay or prevent microbial growth |
Vacuum and oxygen free modified atmosphere packaging | Low oxygen tension inhibits strict aerobes and delays growth of facultative anaerobes |
Carbon dioxide enriched and or modified atmosphere packaging | Specific inhibition of some micro-organisms |
Addition of weak acids; e.g. sodium lactate | Reduction of the intracellular pH of micro-organisms |
Lactic fermentation | Reduction of pH value in situ by microbial action and sometimes additional inhibition by the lactic and acetic acids formed and by other microbial products. (e.g. ethanol, bacteriocins) |
Sugar preservation | Cooking in high sucrose concentration creating too high osmotic pressure for most microbial survival. |
Ethanol preservation | Steeping or cooking in Ethanol produces toxic inhibition of microbes. Can be combined with sugar preservation |
Emulsification | Compartmentalisation and nutrient limitation within the aqueous droplets in water-in-oil emulsion foods |
Addition of preservatives such as nitriteorsulphite ions | Inhibition of specific groups of micro-organisms |
Pasteurization, thermization and appertization | Delivery of heat sufficient to inactivate target micro-organisms to the desired extent |
Food irradiation (Radurization, radicidation and radappertization) | Delivery of ionising radiation to disrupt cellular RNA |
Application of high hydrostatic pressure (Pascalization) | Pressure-inactivation of vegetative bacteria, yeasts and moulds |
Pulsed electric field processing (PEF treatment9) | Short bursts of electricity for microbial inactivation |
I don't work in this field, however, a table such as this could serve as a useful summation and quick reference (as a Nutrition Information table has a role elsewhere). Someone may have suggestions to improve it with extra columns e.g. risk/benefits, economics ,climate ? SignedJohnsonL623 (talk) 02:43, 12 June 2011 (UTC)[reply]
"Optimum temperature range for perishable food storage is 3 to 5 °C (37 to 41 °F)."
It seems that for most food the ideal optimum storage temperature would be just above freezing, about 1C, 33F. Is this true? Where can one find detailed facts, tables and graphs of storage time as a function of temperature for various foods? What temperatures are used for ideal commercial storage of various foods?-96.237.13.111 (talk) 14:31, 19 November 2011 (UTC)[reply]
The article doesn't seem to explain how sugar preserves food. Does it remove moisture, or does it prevent moisture re-entering previously desiccated food? Best Regards DynamoDegsy (talk) 19:29, 9 January 2012 (UTC)[reply]
I think this article is only half as useful as it could be if it included some average storage times. How long do canned (home jars) foods last? How long does dehydrated food last if sealed? What about sealed with a desiccant packet? What about meats vs vegetables? Which methods are best for preserving nutrients? For someone searching for a "Food Preservation" article, that's probably the information they're most looking for. Perhaps a table comparing all of these things would be useful, much like tables on software articles that compare features. — Preceding unsigned comment added by 71.60.196.193 (talk) 09:55, 26 September 2012 (UTC)[reply]
See the article on fermented foods for a long list of people places, and foods that are fermented.
146.226.30.27 (talk) 20:00, 1 January 2013 (UTC)[reply]
A page noting the passing of Dr. Brynjolfsson as a decorated expert in the fields of food preservation has been created and those familiar with the subject matter are invited to contributed. Ari Brynjolfsson Orrerysky (talk) 18:05, 30 November 2013 (UTC)[reply]
Shouldn't potting have its own section? It's storing something in fat rather than jelly, it's different to jellying though they are similar.Gymnophoria (talk) 17:00, 22 March 2014 (UTC)[reply]
So last month I split up the methods into two sections: Traditional and Modern techniques. This was a major improvement in the ordering of information on the page, as modern industrial techniques have little in common with traditional techniques, are impossible for the average Wikipedian to implement, and chronologically succeed the traditional methods in every case.
Unfortunately someone misidentified the section headers for more indices, reverted the formatting to match and wrote a description for traditional. I am about to revert the revert. The new text would not normally be reverted — no real problem in presenting additional information generally — but in the case of this page it is already very long and the paragraph doesn’t contain any information that isn’t presented otherwise. Please message me if you have any concerns regarding this edit. — Muckapedia (talk) 16e avr. 2014 13h36 (−4h)
Just noticed this Wikipedia Section formatting so edited my edits to conform. Hope this helps. — Muckapedia (talk) 16e avr. 2014 13h55 (−4h)
"Many processes designed to preserve food will involve a number of food preservation methods."
This is stating the same things twice. It's obvious that different food preservation methods involve many food processes.
"Many processes designed to preserve food will involve a number of food preservation methods."
This is stating the same things twice. It's obvious that different food preservation methods involve many food processes. — Preceding unsigned comment added by 2601:7:8500:982:11CF:D850:2190:EA86 (talk) 23:24, 28 May 2014 (UTC)[reply]
Sugar has the ability to preserve fruit without boiling first for jam or mixing it with an "antimicrobial" solution. This needs to be stated. It does not say how sugar works and an antioxidant. Preservation is in fact antioxidation. — Preceding unsigned comment added by 2601:7:8500:982:11CF:D850:2190:EA86 (talk) 23:24, 28 May 2014 (UTC)[reply]
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154.118.21.240 (talk) 12:54, 30 December 2019 (UTC)EMMANUEL EMMANUEL TO BE GIVEN A WIKIPEDIA PAGE STUDENT OF CBIS WORKING ON CANCER SOLUTION[reply]
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2404:5540:400:133:78CA:DD7D:CD79:D7AF (talk) 10:55, 1 September 2021 (UTC)[reply]
the concept of freeze drying is sublimation in which the frozen food is subjected to gradual increase in temperature most favourably in a vacuum environment where by the ice sublimes into vapour without converting it into water.
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Please move the second carcinogen sentence (beginning "In 2015, the") to a new "Health hazards" section. Right now, the introduction has two sentences about carcinogens, but nothing appears outside the introduction. To quote MOS:LEAD, "Apart from basic facts, significant information should not appear in the lead if it is not covered in the remainder of the article." 123.51.107.94 (talk) 23:47, 6 March 2024 (UTC)[reply]
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In this phrase:
buried during Autumn in northern
please decapitalise "Autumn". 123.51.107.94 (talk) 01:57, 7 March 2024 (UTC)[reply]