KR100968679B1 - Film for storing agricultural products comprising yellow dusts and methods of preparation thereof - Google Patents
Film for storing agricultural products comprising yellow dusts and methods of preparation thereof Download PDFInfo
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Abstract
본 발명은 황토, 산화아연, 산화마그네슘, 탄산칼슘 및 산성백토를 포함하는 농산물 저장 필름, 이의 제조 방법 및 이를 이용하여 농산물을 저장하는 방법에 관한 것이다. 본 발명의 저장 필름을 이용하여 농산물을 저장할 경우 상당한 시간이 흐르더라도 농산물이 거의 변화되지 않고 신선도를 유지한다.The present invention relates to a agricultural product storage film comprising ocher, zinc oxide, magnesium oxide, calcium carbonate and acidic clay, a method for preparing the same, and a method for storing agricultural products using the same. When the agricultural products are stored using the storage film of the present invention, even after a considerable time passes, the agricultural products are almost unchanged and the freshness is maintained.
농산물 저장 필름, 황토 Agricultural storage film, ocher
Description
농산물은 성장식물에서 절단한 것이거나 또는 땅에서 파낸 것일 경우에도 저장기간 동안 계속 주위와 반응한다. 예를 들어 과일 및 야채는 저장시에도 주위의 공기를 계속 필요로 하며 주위의 산소 및 이산화탄소 양의 변화 및 수분손실에 따라 식물재료의 저급화 현상이 발생하기도 한다.Agricultural products continue to react with their surroundings during storage, even when cut from growing plants or dug out of the ground. Fruits and vegetables, for example, continue to require ambient air during storage, and lowering of plant materials may occur due to changes in the amount of oxygen and carbon dioxide and water loss.
과일, 야채 등을 포함한 농산물을 포장하면 신선도가 오래 지속 될 수 있다. 그러나 대부분의 포장재는 농산물의 계속적인 호흡작용 등에 따라 포장 속의 공기가 변하기 때문에 문제가 생긴다. 특히 숙성되는 동안 식물재료의 호흡속도가 급속히 커지는 단계가 문제가 된다. 그러므로 고분자 필름이 야채 및 과일의 저장수명을 향상시킬 수 있다고 해도 저장기간 동안 포장 속의 공기변화에 따라 저급화 현상이 가속되는 순간이 도래할 수 있다.Packaging fresh produce, including fruits and vegetables, can last for a long time. However, most packaging materials have problems because the air in the packaging changes due to the continuous respiration of agricultural products. In particular, the step of rapidly increasing the respiration rate of the plant material during aging is a problem. Therefore, even if the polymer film can improve the shelf life of vegetables and fruits, the moment when the deterioration phenomenon is accelerated by the change of air in the package during the storage period may come.
따라서 고분자 필름으로 만들어진 포장재 속에 식물재료를 저장할 경우의 문제들을 극복하기 위해 여러 가지 방법이 제안되어 왔으나 아직 황토를 포함한 저장 필름은 개발되지 않았다.Therefore, various methods have been proposed to overcome the problems of storing plant materials in packaging materials made of polymer films, but storage films containing ocher have not yet been developed.
유기 고분자 필름에 항균성을 부여하는 방법으로 유기 고분자 내에서 항균성 무기화합물을 분산시켜 필름으로 성형하는 방법과, 유기고분자 필름의 표면에 항균성 무기화합물을 도포하는 방법이 공지되어 있다. 이러한 항균성 무기화합물로는 항균성 이온을 제올라이트나 알루미노실리케이트에 담지시킨 것이 알려져 있다. 식품포장용 랩 분야에서, 항균성을 얻기 위해서 항균성 이온을 갖고 있는 제올라이트나 알루미노실리케이트로 이루어진 항균성 화합물을 이용하여 이 화합물을 유기 고분자내에 분산시킨 다음 필름으로 성형하는 방법이 알려져 있다.As a method of imparting antimicrobial properties to an organic polymer film, a method of dispersing an antimicrobial inorganic compound in an organic polymer and forming a film, and a method of applying an antimicrobial inorganic compound to the surface of an organic polymer film are known. As such an antimicrobial inorganic compound, an antimicrobial ion is supported on zeolite or aluminosilicate. In the field of food packaging wraps, a method of dispersing the compound in an organic polymer using an antimicrobial compound composed of zeolite or aluminosilicate having antimicrobial ions in order to obtain antimicrobial properties and then molding into a film is known.
그러나, 그와 같은 종래의 입자형 항균성 화합물이나 조성물을 이용하는 경우, 그들은 쉽사리 분산되지 않는 성질이 있어서 필름의 점착성, 투명성 및 이슬방지성을 훼손하기 때문에, 이를 이용하여 제조된 필름은 점착성과 식품포장성이 결여됨으로써, 그러한 필름으로 식품류를 포장하여 소매상점에 전시할 경우 필름을 통하여 식품류의 외관이 바람직하게 보이지 않기 때문에 식품류의 상업적 가치를 저하시키게 되므로, 식품류를 포장하는데 적합하지 않다. 또한, 항균성 화합물이 PVC에 첨가되는 경우, 열 성형과정에서 염소성분이 수지로부터 떨어져 나가서 항균성이 우수한 은이나 다른 금속이온과 결합하여 불수용성의 염화은을 형성하게 된다. 이와 같은 항균성분의 소진은 필름의 항균성을 심각하게 떨어뜨린다. 성형과정에서 소비되는 항균성 화합물을 보충하기 위하여 필름 내에 항균성 화합물을 과잉으로 첨가하는 것이 가능하긴 하다. 그러나, 과잉의 항균성 화합물을 첨가하게 되면 필름이 식품포장용으로 이용되기 위해 요구되는 성질이 손상되게 된다. 필름 에 요구되는 바람직한 성질을 해치지 않도록 항균성 화합물의 첨가량을 제한하게 되면, 항균성을 충분히 부여할 수가 없다.However, when using such conventional particulate antimicrobial compounds or compositions, they have a property of not being easily dispersed, thereby impairing the adhesiveness, transparency, and anti-dew property of the film. Lack of sex is not suitable for packaging foodstuffs, since packaging the foodstuffs with such a film and exhibiting them in a retail store reduces the commercial value of the foodstuffs because the appearance of the foodstuffs through the film is not desirable. In addition, when the antimicrobial compound is added to the PVC, the chlorine component is separated from the resin during the thermoforming process and combines with silver or other metal ions having excellent antimicrobial properties to form insoluble silver chloride. This exhaustion of the antimicrobial component seriously degrades the antimicrobial properties of the film. It is possible to add an excessive amount of the antimicrobial compound in the film to supplement the antimicrobial compound consumed in the molding process. However, the addition of excess antimicrobial compounds impairs the properties required for the film to be used for food packaging. If the addition amount of the antimicrobial compound is limited so as not to impair the desirable properties required for the film, the antimicrobial properties cannot be sufficiently provided.
이에 본 발명자는 종래 의학적 용도에 많이 사용되어 온 황토 성분을 첨가한 농산물 저장용 필름을 착안하게 되었고, 장기간의 저장시험 결과 본 발명을 완성하게 되었다.The present inventors have come to focus on the agricultural product storage film to which the ocher component has been used a lot in the conventional medical use, and completed the present invention as a result of long-term storage test.
황토란 주로 실트 크기의 지름 0.002∼0.005mm인 입자로 이루어진 퇴적물로 뢰스라고도 한다. 황토는 황갈색을 띠고 풍화를 잘 받지 않으며, 모난 수직 벽면을 만들고 주로 석영을 함유하며 그 밖에 휘석 ·각섬석 등을 함유하여 석회질이다. 우리나라 지표의 약 10%를 덮고 있는 황토는 다량의 탄산칼슘을 가지고 있다. 이 탄산칼슘에 의해 황토는 쉽게 부서지지 않는 점력을 지니고 있으며 물을 가하면 찰흙으로 변하는 성질이 있다. 실리카, 알루미나, 철분, 마그네슘, 나트륨 등으로 구성되어 있다. 이러한 성분비와 다양한 효소들로 조성된 황토는 동-식물의 성장에 꼭 필요한 원적외선을 다량 방사 하므로 일명 황토를 살아있는 생명체라 부른다. Ocher is a deposit composed mainly of particles of 0.002 to 0.005 mm diameter with silt size. Ocher is yellowish brown and not weathered well, and it is calcified by making angular vertical walls, mainly containing quartz, and containing fluoride and hornblende. Ocher, which covers about 10% of Korea's surface, has a large amount of calcium carbonate. Due to this calcium carbonate, loess has a viscous force that is not easily broken, and it turns into clay when water is added. It consists of silica, alumina, iron, magnesium, sodium, etc. Ocher composed of such a ratio and various enzymes emits a large amount of far-infrared rays necessary for the growth of animals and plants, so it is called a living organism.
황토는 표면이 넓은 벌집구조로 수많은 공간이 복층구조를 이루고 있다. 이 스폰지같은 구멍 안에는 원적외선이 다량흡수, 저장되어 있어 열을 받으면 발산하여 다른 물체의 분자활동을 자극한다. 즉 황토는 유수한 세월 동안 태양에너지를 흡수하고 규소성 광물로서 쉽게 말해 '태양에너지 저장고'라고 할 수 있다. 오늘날 지표면의 10%를 덮고 있는 황토는 반 건조 지역에 가장 넓게 분포하고 있다. 황토 한 스푼에는 약2억 마리의 미생물이 살고 있어 다양한 효소들이 순환 작용을 일으키고 있다. 한편, 예로부터 황토는 신진대사 작용을 원활하게 하고, 혈액 순환의 활성화로 세포활동을 왕성하게 함으로써, 인체의 노화방지, 신진대사 촉진, 만성피로 등 각종 성인병 예방에 효과가 있는 것으로 알려져 왔다. 따라서 의학적 용도 등으로 황토를 이용한 제품들이 최근 많이 개발되었으나 아직 이를 농산물 저장 필름에 이용하려는 시도는 없었다.Ocher is a honeycomb structure with a large surface, and a large number of spaces have a multi-layer structure. In this sponge-like hole, far-infrared rays are absorbed and stored in a large amount, and radiate when heated to stimulate molecular activity of other objects. In other words, loess absorbs solar energy for many years and is easily called 'solar storage' as a silicon mineral. Ocher, which covers 10% of the earth's surface today, is most widely distributed in semi-arid regions. A spoonful of ocher contains about 200 million microorganisms, causing various enzymes to circulate. On the other hand, ocher has been known to be effective in preventing various adult diseases such as anti-aging, promoting metabolism, and chronic fatigue by smoothing metabolism and activating cellular activity by activating blood circulation. Therefore, many products using ocher have been developed recently for medical use, but there have been no attempts to use them in agricultural product storage films.
본 발명은 농산물의 저장기간을 늘릴 수 있는 황토를 하나의 구성성분으로 하는 농산물 저장 필름을 제공하고, 이것을 이용하여 농산물을 포장함으로써 농산물을 장기간 저장할 수 있는 방법을 제공하는 것을 목적으로 한다.An object of the present invention is to provide a agricultural product storage film having one component of ocher, which can increase the storage period of agricultural products, and to provide a method for long-term storage of agricultural products by packaging agricultural products using the same.
본 발명은 황토, 산화아연, 산화마그네슘, 탄산칼슘 및 산성백토를 포함하는 농산물 저장 필름을 제공한다.The present invention provides a produce storage film comprising ocher, zinc oxide, magnesium oxide, calcium carbonate and acidic clay.
본 발명의 저장 필름을 이용하여 농산물을 저장할 경우 상당한 시간이 흐르더라도 농산물이 거의 변화되지 않고 신선도를 유지하고 있음을 알 수 있다.When storing the agricultural product using the storage film of the present invention it can be seen that even if a considerable time passes the agricultural product is almost unchanged and freshness is maintained.
본 발명에 따른 저장 필름은 일반적인 포장재와 마찬가지로 폴리에틸렌, 폴리프로필렌, 폴리스티렌, 폴리염화비닐수지(PVC) 등의 플라스틱 수지를 주성분으로 할 수 있다. 또한 본 발명에 의한 농산물 저장 필름은 플라스틱 수지 외에 가소제, 안정화제, 하이드로탈사이트, 이슬방지제 및 항균성 화합물을 포함할 수 있다.The storage film according to the present invention may have a plastic resin such as polyethylene, polypropylene, polystyrene, polyvinyl chloride resin (PVC), and the like as a general packaging material. In addition, the agricultural product storage film according to the present invention may include a plasticizer, a stabilizer, a hydrotalcite, an anti-depressant, and an antimicrobial compound in addition to the plastic resin.
상기 저장 필름은 최소한 전체 중량 대비 폴리에틸렌, 폴리프로필렌, 폴리스티렌 및 폴리염화비닐수지로 이루어진 그룹에서 선택되는 어느 하나 또는 둘 이상의 성분 40 내지 95 중량 %, 황토 0.01 내지 10중량 %, 산화아연 0.01 내지 10 중량 %, 산화마그네슘 0.01 내지 20 중량 %, 탄산칼슘 0.01 내지 30중량 %, 산성백토 0.01 내지 30중량 % 의 조성을 가져야 한다.The storage film has at least 40 to 95% by weight of any one or two or more components selected from the group consisting of polyethylene, polypropylene, polystyrene and polyvinyl chloride resin, 0.01 to 10% by weight ocher, 0.01 to 10% by weight zinc oxide %, 0.01 to 20% by weight magnesium oxide, 0.01 to 30% by weight calcium carbonate, 0.01 to 30% by weight acidic clay.
바람직하게는, 상기 농산물 저장 필름은 전체 중량 대비 폴리에틸렌 70 내지 90 중량 %, 황토 1 내지 3중량 %, 산화아연 1 내지 3 중량 %, 산화마그네슘 1 내지 6 중량 %, 탄산칼슘 1 내지 10 중량 %, 산성백토 1 내지 10 중량 %의 조성비로 구성된다. Preferably, the agricultural product storage film is 70 to 90% by weight of polyethylene, 1 to 3% by weight of ocher, 1 to 3% by weight of zinc oxide, 1 to 6% by weight of magnesium oxide, 1 to 10% by weight of calcium carbonate, It comprises a composition ratio of 1 to 10% by weight of acidic clay.
가장 바람직하게는, 상기 농산물 저장 필름은 전체중량대비 폴리에틸렌 80 중량 %, 황토 2 중량 %, 산화아연 2 중량 %, 산화마그네슘 4 중량 %, 탄산칼슘 6 중량 %, 산성백토 6 중량 %의 조성비로 구성된다.Most preferably, the agricultural product storage film is composed of a composition ratio of 80% by weight polyethylene, 2% by weight ocher, 2% by weight zinc oxide, 4% by weight magnesium oxide, 6% by weight calcium carbonate, 6% by weight acidic clay. do.
상기 농산물은 포도, 딸기, 수삼, 호박, 고추, 오이, 상추, 복숭아, 자두, 살구, 매실, 사과, 배, 감 및 대추 등 저장할 수 있는 모든 종류의 농산물이 될 수 있다.The produce may be any kind of produce that can be stored, such as grapes, strawberries, ginseng, pumpkin, pepper, cucumber, lettuce, peach, plum, apricot, plum, apple, pear, persimmon and jujube.
본 발명은 상기 저장 필름을 제조하는 방법을 제공한다. 상기 농산물 저장 필름은 황토 중량 대비 산화아연 50 내지 150 중량 %, 산화마그네슘 100 내지 300 중량 %, 탄산칼슘 200 내지 400 중량 %, 산성백토 200 내지 400중량%을 고온 혼합하여 포함하는 황토함유 칩을 제조하고, 상기 제조된 황토함유 칩과 상기 황토함유 칩의 중량대비 4 내지 6배의 플라스틱 수지를 혼합하여 혼합물을 제조한 후 상기 황토함유 칩과 상기 플라스틱 수지 혼합물을 사출 성형하여 제조할 수 있다. 상기 플라스틱 수지는, 이에 제한되는 것은 아니나, 예를 들어 폴리에틸렌, 폴리프로필렌, 폴리스티렌, 폴리염화비닐수지(PVC) 등이 될 수 있다.The present invention provides a method of making the storage film. The agricultural product storage film is a loess-containing chip containing a mixture of 50 to 150% by weight of zinc oxide, 100 to 300% by weight of magnesium oxide, 200 to 400% by weight of calcium carbonate, and 200 to 400% by weight of acidic clay. The mixture may be prepared by mixing the prepared ocher-containing chip and the plastic resin of 4 to 6 times the weight of the ocher-containing chip, followed by injection molding the ocher-containing chip and the plastic resin mixture. The plastic resin may be, for example, but not limited to, polyethylene, polypropylene, polystyrene, polyvinyl chloride resin (PVC), and the like.
또한 본 발명은 상기 농산물 저장 필름을 이용하여 농산물을 저장하는 방법을 제공한다.The present invention also provides a method for storing agricultural products using the agricultural product storage film.
이하, 실시예에 의하여 본 발명을 더욱 상세히 설명하고자 한다. 단, 하기 실시예는 본 발명을 예시하는 것일 뿐, 본 발명의 내용이 하기 실시예에 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to Examples. However, the following examples are merely to illustrate the invention, but the content of the present invention is not limited to the following examples.
실시예Example 1 황토필름 및 백의 제조방법 1 Manufacturing method of ocher film and bag
황토 2 중량 %, 산화아연 2 중량 %, 산화마그네슘 4 중량 %, 탄산칼슘 6 중량 %, 산성백토 6 중량 %의 성분을 혼합된 상태로 헨쉘 히터믹서에서 고온혼합과정을 거쳐서 냉각혼합기로 보내져 그 안에서 냉각하여 황토함유 칩을 제조하였다. 2% by weight of ocher, 2% by weight of zinc oxide, 4% by weight of magnesium oxide, 6% by weight of calcium carbonate, and 6% by weight of acidic clay were sent from a Henschel heater mixer to a cooling mixer through a high temperature mixing process. Cooling produced the loess-containing chip.
상기 제조된 황토함유 칩과 폴리에틸렌 80 중량 %을 혼합된 상태로 헨쉘 히터믹서에서 고온 혼합한 후 냉각혼합기로 보내져 냉각하였다. 상기 고온 혼합된 황토함유 칩과 폴리에틸렌의 혼합물을 캐스트 사출공정 (T 다이법)에 의해 필름으로 성형하였다. 상기 제조된 필름을 이용하여 저장용 백을 완성하였다.80 wt% of the ocher-containing chips and polyethylene prepared above were mixed at high temperature in a Henschel heater mixer and then sent to a cooling mixer to cool. The mixture of the hot mixed ocher-containing chips and polyethylene was molded into a film by a cast injection process (T die method). The prepared bag was completed using the prepared film.
실시예Example 2. 인삼 저장방법별 부패율 2. Corruption Rate by Ginseng Storage Method
실시예 1에 따라 제조된 필름을 이용하여 2007년 3월 16일부터 경상북도 영주시에 소재하는 풍기인삼명가의 저온저장고에서 실험을 실시하였다. 조사대상으로 한 인삼은 갈변삼으로서 그 자체의 품질이 좋지는 않은 상태였으며, 다만 개체조사시 흙떨림 및 뿌리부러짐 상태에 따라 차이가 있었다.Experiments were carried out in the cold storage of Punggi ginseng Myeongga, Yeongju, Gyeongsangbuk-do from March 16, 2007 using the film prepared according to Example 1. Ginseng was investigated as a brown edible ginseng and its quality was not good, but there were differences according to the shaking and root breakage during individual survey.
2007년 4월 5일 당시 시험처리구의 저장온도는 2.3℃, 습도는 89% 이었고, 내부에 살얼음이 언 상태이었다. 2007년 4월 17일 조사시의 저장온도는 0.6℃, 습도는 99% 이었다. 4월 17일 조사시 대조구 뿐 아니라 저장 필름에 보관한 인삼에서 도 부패주가 발생한 것을 확인할 수 있었다. 그 후 2007년 4월 26일 조사시 대부분 노두부위나 상처난 부위 주변에서 곰팡이가 발생하였음을 확인할 수 있었고, 일부 저장주에서 약간 건조한 상태를 확인할 수 있었다. 건조한 상태가 발생한 원인은 외부 공기가 빠져나갔기 때문인 것으로 추정된다. 2007년 5월 5일 조사시 처리온도는 -0.3℃, 습도는 99% 였으며, 뿌리 상처부위에 무름 현상이 있음을 발견할 수 있었다. 2007년 6월 25일 조사에서도 상처부위에 부패가 발생한 것을 확인할 수 있었고, 대조구에서 더 많은 부패가 발생하였다.As of April 5, 2007, the storage temperature of the test treatment was 2.3 ℃ and the humidity was 89%, and the ice inside was frozen. On April 17, 2007, the storage temperature was 0.6 ℃ and the humidity was 99%. In the investigation on April 17, it was confirmed that the rot caused by not only the control but also the ginseng stored in the storage film. Then, on April 26, 2007, it was confirmed that mold was formed around the outcrop or the wound, and in some reservoirs, it was slightly dry. It is assumed that the cause of the dry condition is due to the escape of outside air. On May 5, 2007, the treatment temperature was -0.3 ° C and the humidity was 99%. The June 25, 2007 survey also found that the wounds had been decayed, with more decay in the control.
결과적으로 저장 후 한 달이 지난 시점부터 본 발명의 저장필름과 대조구 모두에서 부패한 인삼이 나타났으나, 대조구에서 현저하게 많은 양이 발견되었다(표 1). As a result, from one month after storage, decaying ginseng appeared in both the storage film and the control of the present invention, a significant amount was found in the control (Table 1).
표 1. 부패한 인삼의 총개수 Table 1. Total Number of Decayed Ginseng
실시예Example 2. 인삼 저장방법별 총중량 감소율 2. Gross Weight Reduction by Ginseng Storage Method
인삼을 포함한 농산물의 총중량 변화를 측정하면 농산물의 변질 정도를 알 수 있다. 수분 등의 성분이 빠져나감으로써 중량이 감소하기 때문이다.By measuring the change in gross weight of agricultural products, including ginseng, you can determine the degree of deterioration of agricultural products. This is because the weight is reduced by the removal of components such as moisture.
따라서 상기 실시예 1과 같이 일정기간 동안 저장된 인삼의 중량을 측정해 보았다. 각 시료의 중량을 측정한 결과 본 발명의 저장 필름에 저장한 경우 일반 비닐봉지에 저장한 경우보다 총중량의 변화가 적음을 확인할 수 있었다(표 2). Therefore, the weight of ginseng stored for a certain period of time as in Example 1 was measured. As a result of measuring the weight of each sample, when the storage film of the present invention was stored, it was confirmed that the change in the total weight was less than that stored in a general plastic bag (Table 2).
표 2는 인삼 10주의 총중량 변화를 기록한 것으로 단위는 g 이다.Table 2 shows the gross weight change of 10 ginseng strains.
표 2. 인삼 10주의 총중량 변화 Table 2. Gross weight change of 10 ginseng strains
실시예Example 3 저장필름의 포도 저장실험 3 Grape Storage Experiment
2006년 9월 10일 경에 수확한 포도를 60일간 저온저장 하면서 본 발명에 따른 저장필름과 일반필름(대조구)에서 60일 동안 저장한 결과 본 발명에 따른 저장필름 사용구는 포도 줄기의 갈변이 거의 생기지 않았고, 과립의 탄성이 유지가 되었으나, 일반필름의 포도는 줄기의 갈변이 심하였고, 과립 또한 탄성이 많이 떨어져 본 발명에 따른 저장필름의 저장성이 높은 것을 확인하였다. 이 결과를 도 2에 나타내었다.As a result of storing the grapes harvested around September 10, 2006 for 60 days at 60 days in a storage film and a general film (control) according to the present invention, the use of the storage film according to the present invention is almost browning of the grape stem. It did not occur, but the elasticity of the granules was maintained, the grapes of the general film was severe browning of the stem, the granules also confirmed that the storage capacity of the storage film according to the present invention is a lot of elasticity. This result is shown in FIG.
실시예Example 4 저장필름의 인삼 저장 실험 4 Ginseng storage experiment of storage film
깐 마늘을 25℃에서 일반필름, 그물망(마늘망), 저장필름에 각각 저장하면서 일주일 간격으로 품질변화를 분석하였다. 그물망으로 포장한 마늘은 갈변화 및 조직의 저하도가 급격히 생겼으며, 일반필름에 저장한 마늘은 최대 10일까지 상품성을 유지하였다. 본 발명에 따른 저장 봉지필름의 경우에는 저장 6주 후부터 갈변화 가 서서히 일어났으며, 마늘의 경도는 저장초기와 큰 변화가 없었다. 따라서 본 발명에 따른 저장필름에서 저장성이 높은 것을 확인하였다. 이 결과를 도 3에 나타내었다.The quality change was analyzed at weekly intervals while the garlic was stored in normal film, net (garlic) and storage film at 25 ℃. Garlic wrapped with a net has a sharp change in browning and tissue degradation, and garlic stored in a general film maintained its commerciality for up to 10 days. In the case of the storage encapsulation film according to the present invention, brown change gradually occurred after 6 weeks of storage, and the hardness of garlic did not change significantly with the initial storage period. Therefore, it was confirmed that the storage property in the storage film according to the present invention is high. This result is shown in FIG.
도1 내지 도 3 에서 알 수 있듯이 본 발명의 저장 필름을 이용하여 농산물을 저장할 경우 상당한 시간이 흐르더라도 농산물이 거의 변화되지 않고 신선도를 유지하고 있음을 알 수 있다. 따라서 본 발명에 따른 저장성 필름은 많은 농산물의 저장에 유용하며, 저장 농산물의 사용 범위 및 시간을 확장시켜 상품성을 증대시킨다. Figure 1 To degrees As can be seen from 3 , when the agricultural product is stored using the storage film of the present invention, it can be seen that the agricultural product is almost unchanged and freshness even after a considerable time passes. Therefore, the storage film according to the present invention is useful for the storage of many agricultural products, and extends the use range and time of the storage agricultural products to increase the marketability.
도 1 은 인삼을 본 발명의 저장 필름(봉투)으로 저장한 경우와 일반적인 비닐봉투(대조구)를 사용하여 저장한 경우의 부패율을 비교한 그래프를 나타낸다. Figure 1 shows a graph comparing the decay rate when the ginseng is stored with the storage film (envelope) of the present invention and when using a general plastic bag (control).
도 2 는 포도를 본 발명의 저장 필름으로 저장한 경우와 일반적인 비닐봉투를 사용하여 저장한 경우의 부패율의 차이를 나타낸다. (A)는 저장 필름으로 저장한 경우이며, (B)는 일반적인 비닐봉투에 저장한 경우이다. Figure 2 shows the difference in the decay rate when grapes are stored with the storage film of the present invention and when using a general plastic bag. (A) is a case where it is stored by the storage film, (B) is a case where it is stored in a normal plastic bag.
도 3 은 인삼을 본 발명의 저장 필름으로 저장한 경우와 일반적인 비닐봉투 를 사용하여 저장한 경우의 부패율의 차이를 나타낸다. (A)는 저장 필름으로 저장한 경우이며, (B)는 일반적인 비닐봉투에 저장한 경우이다. Figure 3 shows the difference in the decay rate when the ginseng is stored with the storage film of the present invention and when using a general plastic bag. (A) is a case where it is stored by the storage film, (B) is a case where it is stored in a normal plastic bag.
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| KR20070077846A (en) * | 2006-01-25 | 2007-07-30 | 강지호 | Method for manufacturing functional transparent film |
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| KR20070077846A (en) * | 2006-01-25 | 2007-07-30 | 강지호 | Method for manufacturing functional transparent film |
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