KR100847730B1

KR100847730B1 - Functional bag preventing blackening of fruit skin

Info

Publication number: KR100847730B1
Application number: KR1020080000622A
Authority: KR
Inventors: 이금남
Original assignee: 남해산업(주)
Priority date: 2008-01-03
Filing date: 2008-01-03
Publication date: 2008-07-23

Abstract

A functional fruit protection bag neutralized by controlling the production condition and surface processing condition of paper during a paper making process is provided to inhibit black spot and browning in fruit skin. A functional fruit protection bag for prevention of black spot in fruit skin has a pH of 6.0 to 8.0. The acidity of the fruit protection bag is neutralized by selecting one or more ingredients with neutrality selected from a sizing agent, processing number, chemicals for waterproof treatment, chemicals for water repellent treatment and a filler in the stage for production and processing of paper. The chemicals for waterproof treatment and chemicals for water repellent treatment contain one or more ingredients of emulsion wax, paraffin wax, animal wax, vegetable oil and mineral oil.

Description

Functional bag preventing blackening of fruit skin

The present invention relates to a functional fruit bag for preventing blackening or browning of the skin.

The development of agricultural competitiveness in Korea is urgently needed due to changes in agricultural conditions such as internationalization and market opening. Producing excellent agricultural products, responding to imported agricultural products, and promoting exports to take full advantage of the natural conditions of our country will be the way to find the way of agriculture in our country.

To this end, the establishment of cultivation technology to produce higher quality agricultural products should be established first of all, and above all, the detailed research on the cultivation conditions that degrade the quality of agricultural products, the discovery of difficulties, and the development of functional agricultural materials to solve the difficulties This must be preceded. In view of the above, many studies have been carried out, but interest and research on pear bags as agricultural materials for improving the quality of pears, which are classified as agricultural products, especially high-income crops, have been insufficient.

Shingo boats mainly produced in Anseong, Seonghwan, Naju, etc. are recognized for their quality excellence at home and abroad. Shingobae, introduced in Korea in the 1930s, is a mesozoic species whose maturity is from late September (southern) to early October (central), with overweight of 500g belonging to the large family. Fruits are round-shaped, skin is pale yellow brown, and flesh is relatively flexible, fruity, and has a sweet taste of about 12 ° Bx. Shingo is also one of the most promising export prospects in recent years, where demand in Canada, the United States, Australia and Europe has soared.

However, in recent years, the newly discovered epidermis black stools, such as the photo of Fig. 1, occurs when various bags are applied nationwide.

As shown in a, b, and c of FIG. 1, the new black stools appeared in a variety of color bags, yellow double roll bags, and printing papers, and showed similar characteristics to the existing black stools regardless of the type of bags. Giving.

Originally, the pear skin stains (black stools) found so far are classified into three types. The first is a storage disorder as shown in FIG. 2, which is a problem that occurs when stored at low temperature immediately after harvesting. Post-harvest factors such as CO ₂ , ethylene gas concentration and relative humidity have been reported to have a significant effect. As a way to control the black side during storage, it has been suggested to increase the use of Kali (K) and to remove the bag two weeks before harvest, and to take precautions before storage and to avoid overheating during storage. It has been.

In fact, when the rain is high in September-October harvest season, the generation of skin black stools is increasing, and most of the farms suffer from physiological disorders of about 40% of skin black stools by putting them in cold storage immediately without pre-cooling immediately after harvest. . In addition, it is reported that the skin bleeding phenomenon is high when it is cultivated with a double bag, vinyl coating or a bag that is not well ventilated by wax treatment. As such, the existing skin blackening phenomenon is the phenomenon of black spots on the skin, which is mainly caused in Geumchonchu, Chuseok and Shingo.In the early stages, a few small spots occur and gradually enlarge. It is characterized by black color and causes of polyphenols in the skin are known to be discolored by the action of polyphenol oxidase (Poly Phenol Oxydase).

In addition, the black stool or stain of the pear peel is caused by the microorganism Cladosporium tenuissimum (Cladosporium tenuissimum) as a symptom that appears in the fruit stalk and shoots. In this case, spraying of lime sulfur mixture, which is a winter chemical, and disinfectant spray before applying the bag are effective in controlling excessive stains, avoiding excessive application of nitrogen during cultivation, and improving permeation and ventilation in water pipes by attracting eggplant and summer pruning. (Outer: black, inner: blue or red) can reduce the occurrence.

Thirdly, black stools or stains of pear skins are caused by rust caused by rainfall or pesticides when tin pins or zinc pins are used. Tin pins are black brown, and zinc pins are chocolate-colored. In this case, the product can be completely prevented by using the plastic coated with the binding pin used for bag cultivation.

However, unlike the above three cases, the recently discovered black stools have not yet been clearly identified as to their causes or countermeasures. One thing to note, however, is that the black stools of pear husks were further encouraged in the case of applying a specific bag, which can be inferred from the close relationship between the black stools and the properties of the bags.

If you look at the colored bags with severe black stools, you will not find a dye that has been transferred from the outside to the inside. Even if black spots are present in the inlay of colored bags, it is a contamination by fungus and is not related to the black color on the surface. Therefore, after the colored bags were applied to the packaging, no traces of dyes were removed from the surface and transferred to the inlays. In other words, it is not the reason for the black stool that the color of the bag is simply transferred to the epidermis of the pear. This assumption is supported by an enlarged comparison of the black side surface with the normal surface.

The left side of FIG. 3 is a photograph taken by enlarging the surface of the belly in which black stools have been generated, and it can be confirmed that a part of the skin of the belly is colored in black. If the dye of the bag is transferred to the skin of the belly unlike the above, only a part of the skin It would not have been dyed, but would have been dyed entirely.

The newly reported black stools have been found to be more closely related to the physical properties of the newly discovered black stools due to the fact that the black stools of the pears are more encouraged in some bags, and some bags are relatively insignificant. However, since the relationship between the physical properties of the bag and the black side was not clearly understood, it was not possible to set the direction of the development of the functional bag to control the black side.

The development and use of anti-blackening bags can prevent the damage caused by black stools occurring during cultivation of pears, which can save more than 20 billion won annually.

* Calculation method of evidence data for cultivation cost reduction due to blackening prevention

① Nationwide cultivation area and production (2004)

-Growing area: 23,000 ha

-Production: 452,000M / T

② Annual national pear production and pest damage

National production (M / T) % Damage Damage (M / T) Price 452,000 M / T 2.5% 11,300 M / T 11,300,000 / 0.5 (500g / ea) x1000won (loss per unit) = 22.6 billion won

③ Savings from development of anti-blackening treatment bags:

The development and application of anti-blackening bags are expected to increase farm household incomes by producing high quality pears and increasing exports. In addition, the use of pear bags designed for our growing conditions improves the quality and stability of pears.

In addition to the blackening of pears, browning in apples and other fruits is also expected to contribute greatly to agricultural productivity if it can be suppressed or mitigated in the same or similar way.

Patent Publication No. 10-2006-36424 discloses a method for producing a neutral leaf paper, but this technique prevents discoloration and deterioration of printing paper and makes printing clear, and has a different purpose, composition, and effect from the present invention. .

The present invention is to provide a functional fruit bag in order to solve the problem of new blacking of pear peels and browning problems such as apples.

The inventors of the long term study of black stools or browning of fruit epidermis have found that black stools or browning of fruit skin is closely related to the pH of fruit bags. The reason the paper is acidic is not because the wood fibers that make up the paper are acidic, but because the additives other than the fiber are acidic. A typical example of such an acidic drug is alum.

Paper alum refers to aluminum sulfate, an inorganic coagulant, also called alumina sulfate or lactic acid alumina, whose molecular formula is Al ₂ (SO ₄ ) ₃ · χH ₂ O. Alum dissociates into aluminum ions and sulfate ions in water, hydrolyzes hydrated aluminum ions, and becomes acidic as coordination substitution by hydroxyl groups occurs. Usually, the level of addition of alum is to control the hydrogen ion concentration of the feed between 4.5 and 5 because of the high efficiency of alum condensation and other chemicals in these conditions.

At this time, the sulfate ion, which is a counter ion of aluminum, may be converted into sulfuric acid which gives acidity to paper through reduction and oxidation reactions as shown in the following equation.

Sulfate Reduction: H ₂ _{^{+ SO 4 2 - + H +}} = HS - + H 2 O

Oxidation of HS: H ₂ S + O ₂ = HS + HO = SO ₂ + H ₂ O

SO ₂ + O + M = SO ₃ + O ₂

SO ₃ + H ₂ O = H ₂ SO ₄

As indicated above, hydrogen sulfide derived from alum undergoes a cycle that changes to sulfur dioxide or sulfate in the atmosphere and eventually generates sulfuric acid, thereby making the pH of the water moistened with fruit bags acidic. Acidic moisture is believed to cause irritation of the epidermis of the fruit, causing black or browning.

The present inventors apply a method of adjusting the pH of the process water (water) and coating chemicals to neutral rather than the existing acid in the production of the raw paper of the bag in order to prevent black skin or browning such as pears, apples, etc. By neutralizing the chemicals, the chemicals applied to the waterproofing and water repellent treatment of the bags were formulated to produce less acid, so that the skin was neutral even if the bags touched the skin. More specifically, the present inventors use a neutral paper in the case of a bag in which the fruit comes into contact with the fruit so that the acid component eluted from the bag does not cause the contamination of the skin when the bag sticks to the fruit skin in a wet state for a long time, and the waterproof and water repellent of the bag is used. By adjusting the amount of dry oil such that less acid is generated in the chemicals applied to the treatment, it is neutral even if the bag touches the skin, thereby preventing black stools or browning of the skin.

The fruit bag of the present invention was able to suppress the blackening or browning phenomenon of the fruit epidermis by adjusting the acidity.

In order to achieve the above object, in the present invention, an alkyl ketene dimer, which is a neutral sizing agent, is not applied or a sizing agent is substituted for a rosin-alum sizing agent, which is generally added for sizing during the papermaking process of the bag. In the post-manufacturing process of encapsulating paper, chemicals applied to waterproofing, water repellent, printing, etc. are generated to produce less acid, and neutralizing process pH from 4.5 to 7.0. The fruit bag was developed.

The acidity of the prepared fruit bags was measured in accordance with TAPPI Standard T 509 om-96 {Hydrogen ion concentration (pH) of paper extracts (cold extraction method)}. When sticking, black stools may occur, in which the acid component eluted from the bag causes contamination of the skin. Therefore, the present invention is to use a paper base paper treated with a neutral size agent instead of an acidic size agent in order to maintain the pH of the fruit bag base paper at 6.0 or more, and to prepare a less acidic chemicals applied to the waterproofing, water repellent treatment of the bag As a result, even if the bag touches the skin, the black skin or browning of the skin is not generated due to the neutral.

The present invention relates to a functional fruit bag for preventing skin blacking or browning, wherein the pH of the bag is adjusted to 6.0 to 8.0. When the pH range of the bag is less than 6.0, when the bag is wet and sticks to the skin for a long time, the acid component eluted from the bag causes skin blacking or browning, and when the pH range is 8.0 or higher, the manufacturing price is uneconomical.

In addition, the present invention in the production and processing step of the fruit bag at least one of the size agent, process water, surface waterproofing chemicals, surface water-repellent chemicals, printing chemicals and fillers to neutral the pH of the bag 6.0 ~ 8.0 It relates to a functional fruit bag for preventing black stools or browning characterized in that it is adjusted to.

In addition, the present invention is noted that the application of other surface treatment agents to promote the generation of acid components in the process of curing the existing dry oil applied to the surface for imparting waterproofness and / or water repellency of the bag to the emulsion wax, Peel skin, characterized in that the pH of the bag is adjusted to 6.0-8.0 by combining at least one of paraffin wax, animal wax, vegetable oil and mineral wax to reduce the acid component generated by curing after application of the drug It relates to a functional fruit bag for preventing black stools or browning.

In addition, the present invention relates to a functional fruit bag for preventing skin blacking or browning, characterized in that the fruit bag adjusts the pH of one or more of the inlay, the outer surface and the middle to neutral to adjust the pH of the entire bag to 6.0 ~ 8.0. It is preferable to treat the inlay directly touching the skin of the fruit so that it does not discharge acid component.In the case of double or triple bags, it is most preferable that the outer, middle, and inlay are neutral. If the inlay directly in contact with the skin is neutral, significant relief or prevention of black or browning is possible. However, even when the middle portion or the outer surface is formed in neutral, the black side or browning can be alleviated when the pH of the whole bag becomes neutral. In addition, the fruit bag of the present invention relates to a functional fruit bag for preventing skin blacking or browning, characterized in that the single, double or triple bags.

The conventional fruit bag was acidic as pH was about 4-5. Existing fruit bags are mainly treated with an acid size agent using rosin and alum, but as an embodiment of the present invention by using a neutral size agent alkyl keten dimer (Alkyl Keten Dimer) to produce paper without the addition of alum You can neutralize the acidity of the raw paper. In addition to changing the sizing agent, the fruit bag may be neutralized by changing one or more of the process water, the surface waterproofing agent, the surface water repellent agent, and the filler into the neutral agent or the neutral water. When neutral paper is manufactured, acidic ingredients are not eluted from the paper even when the fruit bag is wet and sticks to the fruit skin for a long time, so the acid component does not transfer to the skin, which lowers the incidence of black stools or browning phenomenon and improves the appearance of the fruit. It can greatly improve.

However, as a method for implementing the technical idea of the present invention, in addition to the method of adjusting the pH of the size agent, water-repellent treatment agent, filler, waterproofing agent and process water to neutral, those skilled in the art to which the present invention pertains. Obviously, all methods that can easily adjust the pH of the base paper are within the scope of the present invention.

The inlay base applied to the fruit bag in the present invention is a paper produced by a domestic leaf paper producer (base weight 27g / ㎡) has the advantage that the acidity is neutralized than the conventional paper.

Hereinafter, the present invention will be described in more detail with reference to Examples. However, the scope of the present invention is not limited by the following examples. In the following examples, examples of fruit bags are described in particular for pear bags, but the scope of the present invention is not limited to pear bags, and the results of the present inventors show that browning of apples is also caused by acidity of bags. Apple bags also produced neutral paper in the same and similar way, and experimented with apples, which showed significant suppression of browning.

Example One

Paper producers using domestic twin-type paper machines used paper bags for paper bags without adding rosin sizing agent and alum under the basis weight of 46g / m2 and pH 7.0 of process water. The inlay for belly encapsulation was made without adding rosin sizing agent and alum under the basis weight of 27 g / m 2 and process water pH 7.0. In general, in the case of a pear bag that is subjected to an alcohol-based water repellent treatment on the base paper, a strong size treatment is required in order to prevent paper from breaking down during chemical treatment, but in the case of the present invention, dry oil and wax are mixed as shown in Table 2. Since the surface treatment agent was treated by the composition, there was no risk of paper breakage. Therefore, it was not necessary to make paper under acidic condition of adding an alum. The acidity of the outer skin and the inlay for the encapsulation was measured according to TAPPI Standard T 509 om-96 {Hydrogen ion concentration (pH) of paper extracts (cold extraction method)} and both were neutral at pH 7.0. . Each paper was rolled and printed, coated, water-repelled, etc., and applied to 10-year-old fresh pear trees in an orchard in Naju, Jeollanam-do. The composition of the coating agent is shown in Table 2. The acidity of the whole pear bags thus prepared was measured according to TAPPI Standard T 509 om-96 (Hydrogen ion concentration (pH) of paper extracts (cold extraction method)) and found to be neutral at pH 7.0.

Drug composition toluene Paraffin wax Silicone oil Linseed oil Soybean oil Rapeseed oil Camellia oil antiseptic Antioxidant Content (kg) 57.4 3.67 3 18.0 2.88 2.88 2.88 0.02 0.001

Comparative Example 1

Domestic paper producers used twin net paper machine to add rosin sizing agent and alum under a basis weight of 46g / ㎡ and process water pH 4.5, and papered paper for paper bag was produced by domestic fruit bag paper maker. Rosin size agent and alum were added under a basis weight of 27g / m2 and pH 4.0 of the process water, and the inlay for enveloping paper was made. The acidity of the fruit bag inlay thus prepared was measured according to TAPPI Standard T 509 om-96 {Hydrogen ion concentration (pH) of paper extracts (cold extraction method)}. It was. Each paper was rolled and printed, coated, water-repelled, etc., and applied to 10-year-old fresh pear trees in an orchard in Naju, Jeollanam-do. The composition of the coating agent is shown in Table 3. The difference in the composition of Table 2 and Table 3 is the difference in the content of linseed oil and antioxidant, etc. As compared to the coating liquid composition of Comparative Example 1, Example 1 has a high content of dry oil linseed oil, soybean oil, rapeseed oil and camellia oil and the content of antioxidant You can see that it is low. The acidity of the whole pear bags thus prepared was measured according to TAPPI Standard T 509 om-96 (Hydrogen ion concentration (pH) of paper extracts (cold extraction method)) and found to be acidic at pH 5.0.

Drug composition toluene Paraffin wax Silicone oil Linseed oil Soybean oil Rapeseed oil Camellia oil antiseptic Antioxidant Content (kg) 57.4 3.67 3 6.17 0.88 0.88 0.88 0.02 0.018

Comparative Example 2

Paper producers using domestic twin-mesh paper machine used rosin sizing agent and alum under the basis weight of 46g / m2 and pH 4.5 of process water to make paper bags for envelopes, and domestic paper bag manufacturers used net paper machines. The inlay for belly encapsulation was made without adding rosin size agent and alum on the basis weight of 27 g / m <2> and process water pH 7.0.

Since the surface was subjected to alcohol-based emulsion water repellent treatment, strong size treatment was required to prevent paper scraps during chemical treatment, but in the case of inlay, the surface of the present invention was mixed with dry oil and wax as shown in Table 3 Since the treatment drug was not treated, there was no risk of paper jams. Therefore, it was not necessary to make paper under acidic condition of adding an alum. The acidity of the surface, middle and inlays of the pear bags thus prepared was measured according to TAPPI Standard T 509 om-96 {Hydrogen ion concentration (pH) of paper extracts (cold extraction method)}. It was confirmed that the inlay is neutral with pH 7.0. Each paper was rolled and printed, coated (waterproof), and water-repellent, and then applied to 10-year-old fresh pear trees in an orchard in Naju, Jeollanam-do. The composition of the coating (waterproof) treatment agent of the inlay is shown in Table 3. The acidity of the whole pear bags thus prepared was measured according to TAPPI Standard T 509 om-96 (Hydrogen ion concentration (pH) of paper extracts (cold extraction method)) and found to be acidic at pH 5.9.

Comparative Example 3

Paper producers using domestic twin-mesh paper machine used rosin sizing agent and alum under the basis weight of 46g / m2 and pH 4.5 of process water to make paper bags for envelopes, and domestic paper bag manufacturers used net paper machines. In addition, rosin sizing agent and alum were added under the condition of basis weight 27g / m2 and process water pH 4.5 to stop the bag encapsulation. Under the condition of 7.0, the inlay for belly bag was made without adding rosin size agent and alum.

In the case of the present invention, a strong size treatment was required in order to prevent the paper from breaking down due to the alcohol-based emulsion water repellent treatment. However, in the case of the inlay, the dry oil and the wax were mixed as shown in Table 3 in the case of the present invention. Because the surface treatment agent was treated, there was no risk of paper jams, so no separate size treatment was performed. Therefore, it was not necessary to make paper under acidic condition of adding an alum. The acidity of the outer skin, middle and inlays for the encapsulation was measured according to TAPPI Standard T 509 om-96 {Hydrogen ion concentration (pH) of paper extracts (cold extraction method)}. It was confirmed that it was acidic and the inlay was neutral with pH 7.0. Each paper was rolled and printed, coated (waterproof), and water-repellent, and then applied to 10-year-old fresh pear trees in an orchard in Naju, Jeollanam-do. The composition of the coating (waterproof) treatment agent of the inlay is shown in Table 3. The acidity of the whole pear bags thus prepared was measured according to TAPPI Standard T 509 om-96 (Hydrogen ion concentration (pH) of paper extracts (cold extraction method)) and found to be acidic at pH 5.5.

Experimental Example One

Pears were prepared under the same conditions by applying the pear bags prepared by the methods of the respective examples and comparative examples, and the pears were collected to measure sugar content, skin chlorophyll content, fruit weight, acid content, and color, and are shown in Table 4 below.

Black stools area ratio of skin (%) Sugar content (° BX) Bark Chlorophyll (mg / ㎡) Overweight (g) Acid content (%) Color L a b Example 1 0 13.5 15.4 600 0.132 79 6.2 40 Comparative Example 1 60 12.5 16 580 0.134 28 7.0 32 Comparative Example 2 5 12.5 15.8 580 0.134 69 7.0 32 Comparative Example 3 10 12.5 15.7 580 0.136 62 7.0 32

* Lightness (L): Brightness of the skin, the higher the number, the better.

a: ratio of red / green color of rind, the larger the number, the more reddish,

The smaller the number, the more green.

b: Yellow / blue ratio of the skin, the larger the number, the more yellowish color, and the smaller the number, the more blue color remains.

* In the case of the pear, the higher the L, a, and b values, the more bright yellow color and excellent color.

As can be seen from the measurement results of Comparative Example 1 and Example 1 in the above results, the functional fruit bag of the present invention, unlike the bag when the acidic surface treatment using the existing acid-base paper, no black stools occurred at all The color (L value) of was over 64.6% bright. These results indicate that the acidity of the fruit bags is neutralized than normal bags with pH 7.0 and pH 5.0, so even when the bags are wet and stick to the skin of the fruit for a long time, the acid content is not eluted from the paper so that the acid content does not transfer to the skin It could be adjusted, which means that the incidence of blackening was lowered.

In addition, as can be confirmed by the respective measurement values of Comparative Example 2 and Example 1 in the above results, when the acidic surface treatment and the neutral surface treatment on the inner surface using the existing acidic paper and the neutral paper inlay, the neutral bag and In contrast, black stools occurred somewhat, and the skin color (L value) was 69%, which was slightly darker than that of the example. These results indicate that the acidity of the fruit bag is pH 5.9, which is more acidic than the bag of the example of pH 7.0. When the bag is wet and sticks to the fruit skin for a long time, the acid component is eluted from the paper and the component can be transferred to the skin. This means that blackening occurred. However, compared to the black side of Comparative Example 1 in Comparative Example 2, the incidence of the weak point, because the inlay directly touching the skin was neutral, it can be seen that the occurrence of the black side significantly reduced.

In addition, as can be confirmed by the respective measurements of Comparative Example 3 and Example 1 in the above results, when the acidic surface treatment on the outer surface and inlay using the existing acidic paper surface, the middle paper and neutral paper inlay and the neutral surface treatment on the inlay Unlike neutral bags, black stools occurred somewhat and the skin color (L value) was 62%, which was darker than that of Example and Comparative Example 2. These results indicate that the acidity of the fruit bag is slightly higher than the bag of the example of pH 7.0 and pH 5.9 and the comparative example 2 of pH 5.9. The ingredients could be transferred to the skin, which means that the development of black stools was further promoted. However, in the case of Comparative Example 3, the incidence of black stools is inferior to that of Comparative Example 1, and it can be seen that the incidence of black stools was significantly reduced because the inlay directly touching the skin was neutral.

However, the black stool or browning phenomenon is not necessarily reduced or suppressed only when the inlay is neutral, and even when the inlay is acidic, the black stool or browning phenomenon is suppressed even when the outer and / or middle finger is neutral (this specification) In the case of double bags and triple bags, the overall pH of the bags was important.

1 is a photograph of a new black side appeared variously over a colored bag, a yellow double roll bag and a printing paper.

1a: new black stools that appear in neonatal embryos with colored bags,

1b: new black stools appearing in neonatal boats with yellow double roll bags,

1c: New black side on new boat with printed paper bag

FIG. 2 is a photograph showing existing black stools that occur when stored at low temperature immediately after harvest as a storage obstacle.

3 is an enlarged photograph for comparison of a black side surface and a normal surface.

Left: Enlarged picture of the surface of the belly with black stools,

Right: Closeup of the surface of a normal belly without black stools

Claims

Functional fruit bag for preventing skin blacking or browning with pH adjusted to 6.0 ~ 8.0.

The method of claim 1,

In the production and processing stage of the fruit encapsulating paper, at least one of the sizing agent, the process water, the surface waterproofing agent, the surface water repellent agent, and the filler is selected as neutral to adjust the pH to 6.0-8.0. Or functional fruit bag for browning prevention.

The method of claim 2,

The surface waterproofing medicine or water repellent medicine is a functional fruit bag for preventing skin blackening or browning, characterized in that it comprises at least one of emulsion wax, paraffin wax, animal wax, vegetable oil and mineral wax.

The method of claim 1,

The fruit bag is a fruit bag for preventing black skin or browning, characterized in that the single, double or triple bags.

The fruit bag according to claim 4, wherein the fruit bag is neutralized by adjusting one or more pHs of the outer, middle, and inlay to adjust the pH of the whole fruit bag to 6.0-8.0.