GB2074437A - Treatment of plant matter - Google Patents
Treatment of plant matter Download PDFInfo
- Publication number
- GB2074437A GB2074437A GB8112761A GB8112761A GB2074437A GB 2074437 A GB2074437 A GB 2074437A GB 8112761 A GB8112761 A GB 8112761A GB 8112761 A GB8112761 A GB 8112761A GB 2074437 A GB2074437 A GB 2074437A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet material
- wound
- coagulant
- latex
- web
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920000126 latex Polymers 0.000 claims abstract description 25
- 239000004816 latex Substances 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000000701 coagulant Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims abstract description 14
- 238000000576 coating method Methods 0.000 claims abstract description 14
- 239000002250 absorbent Substances 0.000 claims abstract description 8
- 239000011872 intimate mixture Substances 0.000 claims abstract description 8
- 230000002745 absorbent Effects 0.000 claims abstract description 7
- 235000013311 vegetables Nutrition 0.000 claims abstract description 6
- 239000002998 adhesive polymer Substances 0.000 claims abstract description 5
- 235000013399 edible fruits Nutrition 0.000 claims abstract description 5
- 239000011149 active material Substances 0.000 claims description 11
- 229920000642 polymer Polymers 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 7
- 239000004615 ingredient Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 241000196324 Embryophyta Species 0.000 abstract description 12
- 238000010186 staining Methods 0.000 abstract description 11
- 235000018290 Musa x paradisiaca Nutrition 0.000 abstract description 9
- 239000000417 fungicide Substances 0.000 abstract description 6
- 239000001164 aluminium sulphate Substances 0.000 abstract description 5
- 235000011128 aluminium sulphate Nutrition 0.000 abstract description 5
- BUACSMWVFUNQET-UHFFFAOYSA-H dialuminum;trisulfate;hydrate Chemical compound O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BUACSMWVFUNQET-UHFFFAOYSA-H 0.000 abstract description 5
- 230000000855 fungicidal effect Effects 0.000 abstract description 5
- 230000003115 biocidal effect Effects 0.000 abstract description 2
- 239000003139 biocide Substances 0.000 abstract description 2
- 240000005561 Musa balbisiana Species 0.000 abstract 1
- 241000234295 Musa Species 0.000 description 14
- 206010052428 Wound Diseases 0.000 description 14
- 208000027418 Wounds and injury Diseases 0.000 description 14
- 235000021015 bananas Nutrition 0.000 description 6
- RIOXQFHNBCKOKP-UHFFFAOYSA-N benomyl Chemical compound C1=CC=C2N(C(=O)NCCCC)C(NC(=O)OC)=NC2=C1 RIOXQFHNBCKOKP-UHFFFAOYSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 230000000844 anti-bacterial effect Effects 0.000 description 5
- 239000003899 bactericide agent Substances 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 244000099147 Ananas comosus Species 0.000 description 4
- 235000007119 Ananas comosus Nutrition 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 235000002566 Capsicum Nutrition 0.000 description 3
- 240000008574 Capsicum frutescens Species 0.000 description 3
- 239000002202 Polyethylene glycol Substances 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 235000012055 fruits and vegetables Nutrition 0.000 description 3
- 238000003306 harvesting Methods 0.000 description 3
- 231100001225 mammalian toxicity Toxicity 0.000 description 3
- 229920001223 polyethylene glycol Polymers 0.000 description 3
- 240000008067 Cucumis sativus Species 0.000 description 2
- 235000009849 Cucumis sativus Nutrition 0.000 description 2
- 240000008415 Lactuca sativa Species 0.000 description 2
- 235000003228 Lactuca sativa Nutrition 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 235000010980 cellulose Nutrition 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- BLSQLHNBWJLIBQ-OZXSUGGESA-N (2R,4S)-terconazole Chemical compound C1CN(C(C)C)CCN1C(C=C1)=CC=C1OC[C@@H]1O[C@@](CN2N=CN=C2)(C=2C(=CC(Cl)=CC=2)Cl)OC1 BLSQLHNBWJLIBQ-OZXSUGGESA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 241001133760 Acoelorraphe Species 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- MDNWOSOZYLHTCG-UHFFFAOYSA-N Dichlorophen Chemical compound OC1=CC=C(Cl)C=C1CC1=CC(Cl)=CC=C1O MDNWOSOZYLHTCG-UHFFFAOYSA-N 0.000 description 1
- 241001208371 Fusarium incarnatum Species 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 241001424413 Lucia Species 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- MITFXPHMIHQXPI-UHFFFAOYSA-N benzoxaprofen Natural products N=1C2=CC(C(C(O)=O)C)=CC=C2OC=1C1=CC=C(Cl)C=C1 MITFXPHMIHQXPI-UHFFFAOYSA-N 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- TWFZGCMQGLPBSX-UHFFFAOYSA-N carbendazim Chemical compound C1=CC=C2NC(NC(=O)OC)=NC2=C1 TWFZGCMQGLPBSX-UHFFFAOYSA-N 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- 229960003887 dichlorophen Drugs 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 229940089256 fungistat Drugs 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- -1 polyoxymethylenes Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000013138 pruning Methods 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
- A23B7/154—Organic compounds; Microorganisms; Enzymes
- A23B7/155—Microorganisms; Enzymes; Antibiotics
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
- A23B7/154—Organic compounds; Microorganisms; Enzymes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microbiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
A wound in plant matter (such as a wound in freshly cut fruit or vegetables or in living plants) is treated by applying to the wound a porous absorbent sheet material impregnated or coated with an intimate mixture of a biostat and/or biocide and, preferably a fungicide, with a latex coagulant such as aluminium sulphate. When the intimate mixture is in the form of a coating, the latter preferably also contains a water-soluble adhesive polymer; in this embodiment the coagulant may be absent. When the method is used for the treatment of freshly harvested banana hands, crown rot and latex staining is substantially reduced.
Description
SPECIFICATION
Treatment of plant matter
The present invention is concerned with a method of treating wounds in plant matter (such as fruit or vegetables) and a sheet material for use in such a method.
When certain fruit and vegetables are harvested, it is necessary to cut them from the plant. For example, when bananas are harvested, a large hand (or bunch) is cut from the plant stem leaving a wound on the hand at the cushion and a corresponding wound on the stem. These wounds tend to bleed juices, latex and other plant fluids, which can spoil the appearance of the bananas, eventually rendering them unsaleable. The wound on the hand also acts as a point of attack for pathogenic organisms (such as Fusarium semitectum, which is associated with crown rot decay of bananas).
A similar problem arises on harvesting most other fruit and vegetables, such as pineapples, capsicums, cucumbers and lettuce, and also when cutting a living tree or bush as, for example, when pruning, trimming or shaping or when tapping a rubber tree or palm tree for latex, or any other tree for sap.
The conventional method of treating such wounds in bananas is by washing complete hands in running water to remove latex therefrom, followed by applying to the wound (for example, by spraying or dipping) a solution of fungicide of low mammalian toxicity, such as Thiobendazole or Benlate. This method has the disadvantage that large vats are needed to contain the hands during washing, and several operational steps are required.
A recent proposal is to dip the crowns of the banana hands into a solution of aluminium sulphate (which acts as a coagulant for latex bleeding from the hands) before washing. However, this method does not satisfactorily staunch the flow of latex, so that washing must still be carried out thoroughly.
We have now developed an improved method of treating a wound in plant matter, which comprises applying to the wound a porous absorbent sheet material having, at least on a surface thereof, an intimate mixture of a biologically active material (that is, a biostat, such as a fungistat and/or a bacteriostat, or a biocide, such as a fungicide and/or a bactericide) and a latex coagulant.
The porous sheet material may be coated or impregnated with the intimate mixture; when it is impregnated therewith, it may be produced by dipping a porous absorbent web into a liquid (a suspension or solution) containing the biologically active material and the coagulant, placing the resulting impregnated web over the wound and drying in the air.
The wound in the plant matter being treated in the method according to the invention may be present in freshly cut fruit or vegetables, such as bananas, pineapples, capsicums, cucumbers and lettuce, or it may be present in a cut living tree, bush or other plant. When harvesting certain fruit and vegetables, such as, for example, pineapples, a wound on the material being harvested and a wound on the plant
may both be treated according to the invention.
In order to avoid the need to prepare and handle a
liquid containing a biologically active material on
site, it is preferred to use a porous sheet material which has previously been provided with a coating
comprising the above-mentioned intimate mixture.
In this case, a water-soluble adhesive polymer is preferably mixed with the intimate mixture of coagulant
and biologically active material and applied to at
least one surface of a porous liquid-absorbent web.
The present invention also comprises a coated
porous absorbent web, which has been produced as
described above and is suitable for use in the
method according to the invention. According to a
modification of this aspect of the invention, a
coagulant need not be present in the coating, when the coated web is suitable for treating plant wounds
which do not bleed liquids in the form of latex.
Certain coated webs according to the invention,
namely those in which the biologically active mater
ial is a bacteriostat and/or bactericide and the coagul
ant (when present) is pharmacologically acceptable,
may be suitable for use as medical dressings when
supplied in sterile form.
The water-soluble adhesive polymer present in the
coating on the web may be, for example, a polyox
yethylene having a molecular weight of 1000 to
5000000, an acrylic polymer (such as a polymer of
acrylic acid or acrylamide which, in the latter case,
may be hydrolysed or a hydrolysed polymer of
acrylonitrile), a cellulosic derivative, such as cellul
ose ether (for example, hydroxyethyl cellulose or
carboxymethyl cellulose), polyvinyl alcohoi, a
natural polymer, such as starch, dextrin or gelatin, polyvinyl pyrrolidone, or a vinyl pyrrolidone/vinyl
acetate copolymer.
For ease of application of the polymer to the web,
it is preferred that the polymer has a distinct melting
point or range, as this enables the polymer to be readilytackified during application of the coating.
For these and other reasons, preferred polymers for
use in the coating are polyoxymethylenes and
acrylic polymers.
When only one surface of the web is coated, means for identifying the surface bearing the coating
are preferably provided. Such means may be in the form of indicia on one or other surface or a dye over the surface (preferably the surface bearing the coat
ing containing the above-mentioned water-soluble
adhesive polymer). Another possible means for
identifying the coated surface is a peel-back sheet
material releasably bonded to the coated surface.
The coating is preferably applied to the web in the form of a powder blend of the respective ingredients
(which may be produced by grinding the ingredients together or by blending previously formed pow
ders). The powder blend generally has a particle size
of up to 600 microns, preferably 100 to 300 microns.
Such a fine particle size enables the coated web to
retain its porosity and absorbency.
The powder blend is preferably dispensed on to the
web by means of a scattering machine or vibrating
plate, the dispensing being controlled such that a
uniform distribution of powder is obtained on the
web. The polymer in the powder is then softened, by
the application of heat and/or water (which may be
in the form of steam), such that the polymer effec
tively binds the coating to the web.
Other possible ways of applying the coating to the
sheet web include wet screen printing or gravu re dot
printing (using the polymer as a thickening agent for
the printing composition) or spraying as an aqueous
solution or a solution in an organic solvent.
The coated porous absorbent web according to
the invention is generallyfibrous and may be, for
example, of paper, woven fabric or (preferably) a
non-woven fabric such as, for example, non-woven cotton wadding. The coated web may have an absorption capacity for liquids of about six times its own weight, or more.
The coated web may be in the form of a rnIl,with transverse perforations at regular intervals so that a suitable length of coated web can be readily torn from the roll or, alternatively, the coated web maybe in the form of discrete lengths of a suitable size, the discrete lengths being preferably interleaved for easy dispensing from a dispensing package.
The biologically active material used in the method according to the invention should have low mammalian toxicity when used for treating fruit or vegetables for consumption. Suitable such materiars include Sigma, Mildathane, Delsene, Ben late (Registered Trade Mark), Thiobendazole (all fungicides),
Dichlorophen (a fungicide and bactericide), Tego 51 (a bactericide), quaternary ammonium bactericides and sodium chloride.
The latex coagulant used in the method according to the invention should, like the biologically active material, have low mammalian toxicity. The coagulant may be any of the materials conventionally used for coagulating latices, such as, for example, a salt of a polyvalent metal. The polyvalent metal may be, for example, aluminium: a typical preferred coagulant is aluminium sulphate.
It is preferred that both the biologically active material and the coagulant are water-soluble or water emulsifiable.
In order that the present invention may be more fully understood, the following Examples are given by way of illustration only.
EXAMPLE 1
The following chemicals were mixed in a dry blending machine:- 50 Kilos Polyethylene glycol (molecular weight 12000)
5 Kilos "Benlate" 50% Benomyl (Methyl -1 (butylcarbamoyl) -2 - benzimidazolecarbamate) 50%
Inert Filler
17.5 Kilos Aluminium sulphate
750 gms Green Vegetable Dye
The ingredients were g round togeth er to produce a particle size distribution of between 0 and 300 Microns.
The ground product was curtain-coated onto a continuously moving web of a pure cellulose nonwoven fabric at a weight of 20 gms per square metre (the weight of the fabric itself was 85 gms per square metre and its absorption capacity for liquids was eight times its own weight).
The coated base fabric was then passed into an oven where the polyethylene glycol was melted; the web then continued through cold crushing rollers where the coated ingredients were crushed onto the web, and the molten polyethylene glycol solidified so as to bind all the other ingredients to the base fabric.
A sample of the coated web was then; cut into ss small areas (e.g. 4" x 3" rectangles), forlsanana i treatmertand a further sample was cut into 3" wide rolls perforated at right angles at 4" interval's so that 4" x 3" rectangles could be removed from the rolls for application to a banana hand.
Other shapes couldrof course, be cut from the main web depending on crop treatment require > - ments, i.e. small circular shapes for pineapples and capsicums
To each of 169 banana hands was applied one of the resulting 4" x 3" rectangular pads; the hands were then assessed for crown rot and latex staining after a sea journey from the West Indies (St. Lucia) to
Britain. The results are given in the following tables.
Crown Rot
No. ofhands Rot absent 153 (90.5%) Very slight rot 11 (6.5%) 25% affected 4 (2.4%)
More than 25% affected 1 (0.6%) Severe crown rot 0 (0.0%)
Latex staining
No. ofhands Latex absent 155 (91.7%) Veryslightstaining 12 (7.1%) 3 of all fingers
affected 2 (1.2%) 1/2 or more of all
fingers affected 0 (0.0%)
EXAMPLE 2
A non-woven cellulose web as used in Example 1 was dipped in a solution containing Benlate and aluminium sulphate in a ratio by weight of 0.49 to 1.
Samples of the resulting impregnated web were applied to each of 124 banana hands which were then assessed for crown rot and latex staining as in
Example 1. The results are given in the following tables.
Crown Rot
No. ofhands Rot absent 96 (77.4%) Very slight rot 16 (12.9%) 25% affected 8 (6.5%)
More than 25% affected 1 (0.8%)
Severe crown rot 3 (2.4%)
Latex staining
No. ofhands Latex absent 116 (93.6% Veryslightstaining 2 (1.6%) 3 of altfingers affected 5 (4.0 C6) 1/2 of all fingers
affected 1 (0.8%) - Severe latex staining 0 (0.0%)
When, by way of comparison, banana hands were treated in the conventional manner, by washing the complete hands in running water and then dipping in a solution of a fungicide, the banana hands suf fered far more crown rot and latex staining than banana hands treated according to Example 1 or 2 after a similar sea journey. In each case (including
Examples 1 and 2), assessment for crown rot and latex staining was effected approximately 16 days after harvesting the bananas.
In a prolonged evaluation over 24 shipments, banana hands were
(i) treated with pads as described in Example 1;
(ii) treated with an impregnated web as described in Example 2; or
(iii) treated in the conventional manner, as described above.
2.9% of the hands treated according to method (i) had severe crown rot and 0% had severe latex staining; in method (ii), the corresponding figures were 6.3% (severe crown rot) and 0.5% (severe latex staining); while in method (iii), the corresponding figures were 8.75% (severe crown rot) and 2.81% (severe latex staining). These percentages are based on the total number of hands and not (as in Examples 1 and 2) based on the number of fingers.
Claims (10)
1. A method of treating a wound in plant matter, which comprises applying to the wound a porous absorbent sheet material having, at least on a surface thereof, an intimate mixture of biologically active material and a latex coagulant.
2. A porous absorbent sheet material which comprises a porous web having a dry coating on one or both surfaces, said coating comprising an intimate mixture of a water-soluble adhesive polymer, a biologically active material and a latex coagulant.
3. A sheet material according to claim 2 in which the polymer has a distinct melting point or range.
4. A sheet material according to claim 1 or 3, in which the coating is applied in the form of a powder blend of the respective ingredients.
5. A sheet material according to any of claims 2 to 4, in which the porous web comprises a nonwoven fabric having an absorption capacity for liquids of at least six times its own weight.
6. A sheet material according to any of claims 2 to 5, in which the biologically active material and the coagulant are pharmacologically acceptable and the sheet material is packaged in sterile form.
7. A modification of the sheet material claimed in any of claims 2 to 6, in which the coagulant is absent.
8. A package containing sheet material according to any of claims 2 to 7, in which the sheet material is in the form of a roll with transverse perforations at regular intervals or in the form of an interleaved stack of discrete lengths of the material.
9. A method according to claim 1, in which the sheet material is as claimed in any of claims 2 to 6.
10. A method according to claim 1 or 9, in which the wound is present in freshly cut fruit or vegetables.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8112761A GB2074437B (en) | 1980-04-25 | 1981-04-24 | Treatment of plant matter |
| CY135581A CY1355A (en) | 1980-04-25 | 1981-04-24 | Treatment of plant matter |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8013687 | 1980-04-25 | ||
| GB8112761A GB2074437B (en) | 1980-04-25 | 1981-04-24 | Treatment of plant matter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2074437A true GB2074437A (en) | 1981-11-04 |
| GB2074437B GB2074437B (en) | 1984-02-15 |
Family
ID=26275321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8112761A Expired GB2074437B (en) | 1980-04-25 | 1981-04-24 | Treatment of plant matter |
Country Status (2)
| Country | Link |
|---|---|
| CY (1) | CY1355A (en) |
| GB (1) | GB2074437B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2204271A (en) * | 1987-04-24 | 1988-11-09 | Haircloth Weaving & Finishing | Laminates for treating wounds in cut fruit |
| GB2416287A (en) * | 2004-07-17 | 2006-01-25 | Aquasol Ltd | Bands or dressings for delivering active ingredients to plant tissues |
| WO2006038935A1 (en) * | 2004-09-30 | 2006-04-13 | Kimberly-Clark Worldwide, Inc. | Decal and method for treating surfaces |
| WO2006038967A1 (en) * | 2004-09-30 | 2006-04-13 | Kimberly-Clark Worldwide, Inc. | Decal that includes synergistic antimicrobials for treating surfaces |
-
1981
- 1981-04-24 GB GB8112761A patent/GB2074437B/en not_active Expired
- 1981-04-24 CY CY135581A patent/CY1355A/en unknown
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2204271A (en) * | 1987-04-24 | 1988-11-09 | Haircloth Weaving & Finishing | Laminates for treating wounds in cut fruit |
| EP0290155A2 (en) * | 1987-04-24 | 1988-11-09 | HAIRCLOTH WEAVING & FINISHING COMPANY LIMITED | Sheet material for treating wounds in plant matter |
| EP0290155A3 (en) * | 1987-04-24 | 1989-11-08 | HAIRCLOTH WEAVING & FINISHING COMPANY LIMITED | Sheet material for treating wounds in plant matter |
| US4921702A (en) * | 1987-04-24 | 1990-05-01 | Haircloth Weaving & Finishing Company Limited | Sheet material for treating wounds in plant matter |
| GB2416287A (en) * | 2004-07-17 | 2006-01-25 | Aquasol Ltd | Bands or dressings for delivering active ingredients to plant tissues |
| WO2006008511A1 (en) * | 2004-07-17 | 2006-01-26 | Aquasol Limited | Novel methods of delivering active ingredients to plants |
| GB2416287B (en) * | 2004-07-17 | 2006-06-21 | Aquasol Ltd | Novel methods of delivering active ingredients to plants |
| WO2006038935A1 (en) * | 2004-09-30 | 2006-04-13 | Kimberly-Clark Worldwide, Inc. | Decal and method for treating surfaces |
| WO2006038967A1 (en) * | 2004-09-30 | 2006-04-13 | Kimberly-Clark Worldwide, Inc. | Decal that includes synergistic antimicrobials for treating surfaces |
Also Published As
| Publication number | Publication date |
|---|---|
| CY1355A (en) | 1987-08-07 |
| GB2074437B (en) | 1984-02-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940424 |