Method for the prophylactic treatment of a food product
A preventive, food technology, applied in the fields of chemicals for biological control, food preservation, botanical equipment and methods, etc., can solve problems such as reducing effectiveness, and achieve the effect of preventing reproduction and preventing growth
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example 1
[0189] Example 1 (according to the invention)
[0190] Tested by exposure of two insect species on a powder / grain mixture
[0191] Two series of tests were carried out by contact with powder mixed with wheat grains against two insects: the corn weevil (also known as the wheat weevil or the rice weevil or " du blé") and the grain beetle. These two insects are the main ones that destroy grain stocks; they are especially unsafe because they lay their eggs inside the grain. Grain beetles are pests of stored cereal grains (wheat, rice, maize...), almost worldwide beetles, and are also major pests of nuts, such as peanuts.
[0192] For the tests in Example 1, a powder containing 85 wt% sodium bicarbonate and 15 wt% silica gel was formed and then applied to wheat grain (obtained from an organic farm and not chemically treated, either before or after harvest), and the grain was then allowed to Contact with the tested insect species. The sodium bicarbonate was sodium bicarbonate E...
example 2
[0207] Example 2 (according to the invention)
[0208] Tested with powder mixed with wheat grain and exposed to 3 types of insect species
[0209] Tests were performed against three different species of parasites that were the main parasites found in grain / food storage units: two Coleoptera and one Lepidoptera:
[0210] Miscellaneous corn beetles (also known as flour beetles);
[0211] rice weevil (also called rice weevil, which is now a major pest found on wheat);
[0212] · Mediterranean mealworm (also known as mealworm).
[0213] For the tests in Example 2, a powder containing 95 wt% sodium bicarbonate and 5 wt% silica was applied to wheat grain (obtained from an organic farm) and the grain was then contacted with the species tested. Described sodium bicarbonate is sodium bicarbonate (Solvay Food grade 0 / 4), with an average laser particle size of 25 μm. The mineral co-formulation is amorphous silica (Solvay 38AB food grade), with an average laser particle size (weig...
example 3
[0232] Example 3 (according to the invention)
[0233] Tests for contact with primary and secondary insect pests using a powder mixed with wheat grain
[0234] Tested under conditions similar to Example 2, contact was initiated on untreated organic wheat (50 insects of each species were deposited in batches into 2 kg of mixed powder+wheat grains; contact was maintained at 22°C- at 25° C. with 60%-63% relative humidity), but using a powder comprising 95% sodium bicarbonate and 5% silica and having an average particle size of less than 63 μm.
[0235] The rice weevil (Rice weevil) was used as a representative species of major insect pests.
[0236] As a representative species of secondary insect pests, the corn beetle (flour beetle) was used.
[0237] Insects were not initially starved (ie fed normally prior to testing) and each test was performed in triplicate to calculate mean values and standard deviations for repeatability.
[0238] The results are listed in Tables 7 an...
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