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Should I Worry About Ethylene Gas
University researchers findings imply that there is no ‘safe’ level of ethylene that does not cause a deleterious effect on postharvest life.
If 5 PPB is assumed to be the lowest possible ethylene concentration that can be achieved in a postharvest situation, then holding any non-climacteric fruit and vegetable in 5 PPB ethylene will generate 100% of its possible postharvest life. The percentage loss in postharvest life at any higher ethylene concentration can then be calculated from the regression equations. The percentage loss in postharvest life at 20 degrees C for the 7 non-climacteric produce examined in wills et al. (1999) ranged from 25 to 46% postharvest life was lost.
Conclusions
Although produce may only spend a small proportion of their postharvest life in each marketing situation, the effects of elevated ethylene levels are cumulative. The end result successive levels of moderate ethylene levels throughout marketing can be a very short life in the hands of the consumer.
The industry should be seeking to minimize the impact of ethylene on produce at all stages of the marketing chain. The extended market life that would arise from a reduction in ethylene level during marketing can lead to consumers having greater confidence in the purchase of fruit and vegetables with a resultant increase in sales volume and/ or price.
(A complete copy of this report available upon request)
Ethylene gas is also used in ripening rooms to color up the fruit then is moved to a regular cold storage room with other produce. Some fruits gassed with ethylene are Bananas, Tomatoes and Avocados. The ethylene gas turns Bananas yellow, Tomatoes red and make Avocados soft and ready to eat. Our products are used before the fruit is gassed to keep it from breaking and after to help slow down the natural decay process. Ethylene gas and it’s removal are both important in giving the consumer the best possible product.
While ethylene gas is used under controlled conditions as a ripening agent, even small amounts of ethylene gas during shipping and storage causes most fresh produce to deteriorate faster. Automotive emissions, plastics, smoke and fluorescent lights all increase ethylene gas levels. A single propane-powered forklift can cause serious damage in highly ethylene gas-sensitive commodities.
The Effects of Ethylene Gas You’ve seen the effects of ethylene gas damage many times: decay (fresh produce and flower bulbs); russet spotting (leafy vegetables and eggplants); yellowing (cucumbers, broccoli and brussel sprouts); odor (garlic and onions); wilting (vegetables and cut flowers); scald and loss of crunch (apples); and rind breakdown (citrus). Control ethylene gas levels and you preserve freshness.
What Does Ethylene Control Do
Our products take the ethylene gas out of the air to slow down the natural decay process of fruits, vegetables and floral. The Power Pellets also kill molds, rots, bacteria and removes odors.
Independent Research Supports Ethylene Control’s Claims After an independent study in 1997 at the University of California Davis, research reported that the removal of ethylene gas is “critical to prevent concentrations that exceed the threshold for ethylene injury.” In this study, several products that claim to eliminate ethylene gas were tested. Only Ethylene Control was found to remove ethylene gas. Whether in the laboratory or in actual application. Ethylene Control products are overachievers. They not only succeed in their primary function of counteracting ethylene gas, but also in killing air-born bacteria, viruses, sour rot, blue mold and brown rot fungi. CF Quality Consultants has proven our Power Pellets also kill molds and rots. The Townsend reports shows how the pellets kill bacteria. Contact us for both these reports. Ethylene control: an essential link in the cold chain. As markets expand across the country and around the world, preserving freshness is one of our biggest challenge. While refrigeration and humidity slow decay, they don’t halt the production of harmful ethylene gas. Use Ethylene Control products during post-harvest handling of fruit, vegetables and floral commodities during storage and shipment by truck or sea container. Distribution Centers Restaurants Specialty Packers Floral Reach-ins Packer/Shippers Institutions Retail Walk-ins Re-packers
How Safe Are Ethylene Control Products
The Power Pellets oxidize the ethylene gas with nascent oxygen (nascent oxygen is a type of oxygen that oxidizes ethylene gas, molds, rots, and odors), converting the pellets into a organic fertilizer. Unlike most other products on the market there are NO disposal problems with our patented Power Pellets. The material and ink that we use to make our sachets is approved by the FDA and the Ethylene Control Power Pellets are OMRI listed.
How Ethylene Gas Effects your Produce
Ethylene production and sensitivity levels of selected fresh produce, flowers and nursery stock.
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Fruits & Vegetables Types
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Rate of Ethylene Production |
Level of Ethylene Sensitivity
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Principal reaction to Ethylene Gas
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| Apples Apricots Asian Pears Asparagus Avocados Bananas Berries Broccoli Brussel Sprouts Cantaloupe Carrots Cherimoya Cherries Cucumbers Eggplant Grapefruit Grapes Kiwifruit Lemons, Limes Lettuce (*2) Mangoes Melons (*3) Nectarines Onions, Garlic Oranges Papaya Passion Fruit Peaches Pears (*5) Persimmons Plums, Prunes Potatoes (*6) Quinces Tomatoes Watermelons | VH H H VL H M L VL VL H VL VH VL L L VL VL L VL VL M M H VL VL H VH H H L M VL L M L | H H H M H H L H H M L H L H M-H M L H M H H H H L M H H H H H H M H H H | Scald (*1) Decay Decay Toughness Decay Decay Mold Yellowing Yellowing Decay Bitterness Decay Softening Yellowing Brown Spots Mold Mold Decay Mold Russet spotting Decay Decay Decay Odor, sprouting Mold (*4) Decay Decay Decay Decay Decay Decay Sprouting Decay Shrink, decay Lose firmness |
| Floral & Nursery Commodities | |||
| Carnations -Cut Roses -Cut Flower Bulbs Nursery Stock | VL VL VL VL | H H H H | Sleepiness (*7) Prem. opening Shrink (*8) Slower start |
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VL = Very low, L = Low, M = Moderate, H = High, VH = Very High *1. Lose crunch *2. Leafy greens *3. Crenshaw, Honeydew, Persian *4. Rind breakdown *5. Anjou, Bartlett, Bosc *6. Processing, Seed *7. Leaf curl *8. Retards flower formation * Source: Fresh Produce Manual for 1997 from the Produce Marketing Association and the 1991 Sea Land Shipping Guide for Perishables. This is only a partial list. For more information on specific commodities and about the impact of ethylene under various storage and shipping conditions call us toll free in the U.S. (800) 200-1909 or (559) 896-1909.
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