Ethylene filters how do they work


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This is a brief description of how Extend-A-Life Ethylene filters can prolong the life of fresh fruits and vegetables.

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Ethylene filters how do they work

  1. 1. AgraCo Technologies International LLC Ethylene Filters How they work
  2. 2. What is Ethylene? “Ethylene, unlike the rest of the plant hormone compounds is a gaseous hormone. Like abscisic acid, it is the only member of its class. Of all the known plant growth substance, ethylene has the simplest structure. It is produced in all higher plants and is usually associated with fruit ripening and the tripple response.”(Arteca, 1996; Mauseth, 1991; Raven, 1992; Salisbury and Ross, 1992).
  3. 3. What does Ethylene do? H2C=CH2As they approach maturity, many fruits (e.g., apples, oranges, avocados) release ethylene.Ethylene then promotes the ripening of the fruit.Commercial fruit growers can buy equipment to generate ethylene so that their harvest ripens quicklyand uniformly. The presence of ethylene is detected by transmembrane receptors in the endoplasmicreticulum (ER) of the cells. Binding of ethylene to these receptors unleashes a signaling cascade thatleads to activation of transcription factors and the turning on of gene transcription.The ill-fated FlavrSavr tomato contains an antisense transgene that interferes with the synthesis ofethylene and hence slows ripening.Ethylene also affects many other plant functions such as: abscission of leaves, fruits, and flower petals;• drooping of leaves;• sprouting of potato buds;• seed germination;• stem elongation in rice (by promoting the breakdown of abscisic acid (ABA) and thus relieving ABAs inhibition of gibberellic acid);• flower formation in some species.
  4. 4. Ethylene Cell Wall Plasma Wall Being a gas, ethylene can permeate through barriers like; corrugated cardboard, plastic containers, and natural barriers; cell walls, plasma walls. EthyleneWhen the ethylene Receptormakes contact with the Depending on whichethylene receptors, a stage of the life cycle thereaction on the genetic fruit is in, determines thelevel is started. reaction. Gene Gene Gene Ripening PR Proteins Senescence
  5. 5. What does reducing ethylene mean to you?Keeping fruits, vegetables and fresh cut flowers fresher longer means:  A competitive edge with better looking and better tasting product  Increased customer satisfaction  Increased customer loyalty  Decreased shrink due to spoilage  Longer marketability of produce  Increase in profitability  Decreased rejections  Reduced waste
  6. 6. So how does this work? The process is fairly simple…Our filters and sachets contain a mineral calledZeolite. While there are many different zeolites, they share something in common; a molecular structure that is much like a honeycomb grid work. This makes zeolites a natural odor absorber.
  7. 7. So how does this work?The zeolite is coated with potassiumpermanganate (KMnO4)Potassium Permanganate is an oxidizer, thatreacts with the ethylene in the air, and releasescarbon dioxide and water.
  8. 8. So how does this work? AgraCo’s filters are encased in a pleatedstainless steel frame covered with Tyvek® AgraCo’s ethylene absorbing sachets uses Tyvek® to Envelop the zeolite.
  9. 9. So how does this work?For the filter to work optimally, it must be placed in the air- flow either on the intake or the output in a closed system. Ethylene is slightly heavier than air, so the better the aircirculation, the more ethylene will be captured by the filter.AgraCo’s model 350 filter has perimeter tabs to allow you to zip-tie directly to the cover of your current air circulation system.
  10. 10. So how does this work? Air Flow Extend-a-life filter Reefer ProductIn refrigerated trailers and containers, place the filters directlyon to the air circulating system, directly in the flow of air. As airpasses through the filter, the potassium permanganate oxidizes,“scrubbing” the air clean. The zeolite deodorizes by capturingbacteria, and the Tyvek® cover captures dirt, mold, and fungusspores. This method is also suggested for cold room storage.
  11. 11. So how does this work? Product Air Flow Extend-A-Life filtersIn non-refrigerated trailers and containers, place the filtersdirectly on the bins of product. As air passes through the filter,the potassium permanganate oxidizes, “scrubbing” the airclean. The zeolite deodorizes by capturing bacteria, and theTyvek® cover captures dirt, mold, and fungus spores.
  12. 12. So how does this work?AgraCo’s model 341 filters are specially designed to work with our blower unit.AgraCo’s 345 model blower is built from stainless steel with four mounting eyes on thetop of the unit for easy installation.The unit has a 9 amp, ½ hp electric motor, and is rated 1075 RPM high speed delivering1580 CFM of air or 750 RPM to deliver 1120 CFM.This unit uses 4 filters.The ease of installation, allows you to turn virtually any room into a produce coolingarea.
  13. 13. Produce Saver™ & Floral Saver™AgraCo’s Produce Saver™ Floral Saver™ work as mini filters. The sachetsare made of the same materials as the Extend-A-Life™ filters, but on asmaller scale.They are the perfect size for use inside 30-40 lb boxes of tomatoes,avocados, peaches, nectarines, pears, and virtually any tree fruit.Additionally, bagged fruit such as cherries and grapes. Placing the sachetinside the master wrap bag, and will reduce the ethylene making the useof MAP bags more effective. Produce Saver™ are also ideal for fruit baskets, fruit and vegetable displays, and floral arrangements. They are made of the same Tyvek® as the Extend-A-Life™ filters and are printed with food grade ink.
  14. 14. Ethylene producers and ethylene sensitive productsProducts such as melons, bananas, avocados and tomatoes for example are considered ethyleneproducers. Products such as lettuce, broccoli, and carrots are considered ethylene sensitive; thismeans that these products will decay rapidly when exposed to even the smallest amounts ofethylene gas. Ethylene producers: Ethylene sensitive:apples nectarines bananas, unripe leafy greensapricots papayas Belgian endive lettuceavocados passion fruit broccoli okrabananas, ripening peaches brussel sprouts parsleycantaloupes pears cabbage peascherimoya persimmons carrots peppersfigs plantains cauliflower potted plantsguavas plums chard spinachhoneydew melons prunes cucumbers squashkiwifruit, ripe quinces cut flowers sweet potatoesmamey rambutan eggplant watercressmangoes tomatoes florist greens watermelonmangosteen green beans yams kiwifruit, unripe
  15. 15. Odor sensitivity and odor “migration”Odor produced by: Will be absorbed by:apples cabbage, carrots, celery, figs, onions, meat, eggs, dairy productsavocados pineapplescarrots celerycitrus fruit meat, eggs, dairy productsginger root eggplantgrapes fumigated w/sulfur dioxide other fruits and vegetablesleeks figs, grapesonions, dry apples, celery, pearsonions, green corn, figs, grapes, mushrooms, rhubarbpears cabbage, carrots, celery, onions, potatoespotatoes apples, pearspeppers, green pineapplesHerbs citrus fruit
  16. 16. US Navy Test Results for our Ethylene Absorption FiltersThe US Navy has been using our filters for the past decade. Their testsshow: • 245% improvement shelf life for tomatoes • 88% for lettuce • 10% for Cucumbers • 9% for OrangesThe results of the test confirmed that the Extend-A-Life™ filters performextremely well, also the Extend-A-Life™ Ethylene filters reduces mold,bacteria and odors in your cold storage
  17. 17. What our customer are sayingI would like to let you know that we believe your The situation occurred when an export container wasethylene scrubbers are delayed two weeks (arriving 74 days after shipment)a very effective tool in out storage and handling of and the temperature recorders had run out. The twofresh eating apples. filters on the container worked perfectly – and theAs you know, its very important to have hard, fresh fruit arrived in good condition. Feel free to use thistasting apples for testimonial and our business name:consumers. I believe fresh apples create more Columbia River sales. Karen FarrisThe ethylene scrubbers are an important tool inour quality control program.Fred Hess PhilAbundance has utilized six (6) AgraCo Extend-A-Hess Bros. Fruit Co Life™ Model 341 Ethylene Filter Systems to maintainUpon learning the extent of damage that ethylene maximum freshness of its donated produce stored ingas causes to flowers in storage we tried these the Galloway Warehouse. Prior to the installation offilters, and have been very happy with how they the AgraCo Extend-A-Life™ filtering system,work. PhilAbundance experienced a high rate of spoilage ofOur sales returns, (the amount we replace), have its fruits, vegetables, and other produce. Followingdropped approximately 35% over the last 5 years, the installation of AgraCo’s filters, a significantand are the best they have been in our companies increase in the shelf life of produce was documentedhistory. You can’t see these work, but they can be by PhilAbundance, as well as a substantial reductionjudged by the numbers, and we are convinced they in expenses associated with waste the flowers in their longevity. Bill ClarkeBarry Spengler President and Executive DirectorVP Operations, Royer’s Flowers & Gifts PhilAbundance
  18. 18. AgraCo Technologies International, LLC Extend-A-Life Ethylene Removal 220 South Second Street Dillsburg, PA 17019 717-502-0350 Fax 717-502-0353