摘要:
A device for controlling the composition inside a shipping/storage container for produce, such as bananas, is disclosed. Such atmospheric control is particularly important when dealing with the ripening of respiring fruit. The device comprises a chamber surrounded by an outer wall, at least a portion of that wall made up of a selectively gas-permeable membrane which is in communication with the outside atmosphere. The chamber also includes at least two channels which are connected to the container: one which transmits gas form the chamber to the container, and one which transmits gas from the container to the chamber.
摘要:
A method for storing respiring produce, particularly bananas, during ripening is disclosed. The method allows bananas to remain in the ripened condition for an extended period of time while, at the same time, having improved sweetness and taste characteristics. In this method, during ripening, the produce is maintained in a gas medium which comprises oxygen and carbon dioxide and has the following characteristics:PR=ratio of oxygen to carbon dioxide=(20.94−B)/C=from about 1.8 to about 3.8; wherein B is the percentage (by weight) of oxygen in the gas medium and C is the percentage (by weight) of carbon dioxide is the gas medium, and the percentage (by weight) of oxygen (in the gas medium) is from about 1.0 to about 6.0, and the percentage (by weight) of carbon dioxide in the gas medium is from about 3.0 to about 10.0.
摘要翻译:公开了一种在成熟期间储存呼吸产物,特别是香蕉的方法。 该方法允许香蕉长时间保持成熟条件,同时具有改善的甜味和味道特征。 在该方法中,在成熟期间,将产物保持在包含氧和二氧化碳的气体介质中,具有以下特征:PR =氧与二氧化碳的比= =(20.94-B)/ C =约1.8至约3.8 ; 其中B是气体介质中氧的百分比(重量比),C是气体介质中二氧化碳的百分比(以重量计),氧(在气体介质中)的百分比(以重量计)为约 1.0至约6.0,并且气体介质中二氧化碳的百分比(重量)为约3.0至约10.0。
摘要:
The invention relates to a control system of a ripening (store) room for fruit and/or vegetables, and more particularly for bananas, and a device(s) for carrying out that method. The invention relates to the construction of said room to provide the most symmetrical distribution of heat across the load stacked in room space during ripening/store periods, due to periodically switching ON and OFF of heating, cooling and process air fans, as well as due to a suitable process control method. The new process control system is designed for the most efficient operation and energy consumption of said system during ripening (storage) time.According to the invention, the air (which also includes fluid circulating inside the ripening/store room (for example during Controlled Atmosphere (CA) storage) is cooled (or heated) and guided across the fruit (vegetables) by circulation through the load placed in boxes and loaded on the pallets in the manner most suitable for the actual biological and biochemical activity of said load. The air fans blow the process air through the load as well as cooling and heating elements, not always at full performance (nominal capacity) level. In order to achieve the optimal level, work needs to be modulated so as to keep all three elements, air flow, cooling and heating in a stable balance with a load stacked in the room so as to compensate for differences in loading (full load vs. part load) and in bio-activity of load during the ripening (store) process.
摘要:
Coatings for fruit, particularly respiring fruit, such as bananas or melons, are disclosed. The coatings comprise food grade materials selected from polysaccharides, proteins, lipids, waxes, and mixtures of those materials. Preferred coating include xanthan and/or acylated glycerides.
摘要:
A method for storing respiring produce, particularly bananas, during ripening is disclosed. The method allows bananas to remain in the ripened condition for an extended period of time while, at the same time, having improved sweetness and taste characteristics. In addition, the method does not require separate handling and repackaging of the bananas between the starting of the ripening process and storage/shipment of the bananas. In this method, ripening is initiated by inserting additional gas into the banana package, such that the gas medium comprises from about 2.0% to about 5.0% oxygen, from about 5.0% to about 15.0% carbon dioxide, from about 0.8% to about 1.5% ethylene, the remainder of the gas medium being predominantly nitrogen, for a period of from about 0.5 to about 5 seconds. The composition of the gas medium in the package is then adjusted such that the gas medium has a ratio of oxygen to carbon dioxide which meets the following conditions: (20.94−B)/C=from about 1.8 to about 3.8; wherein B is the percentage of oxygen in the gas medium, C is the percentage of carbon dioxide in the gas medium, and, further, wherein the percentage of oxygen in the gas medium is from about 1.0 to about 6.0, and the percentage of carbon dioxide in the gas medium is from about 3.0 to about 10.0.
摘要翻译:公开了一种在成熟期间储存呼吸产物,特别是香蕉的方法。 该方法允许香蕉长时间保持成熟条件,同时具有改善的甜味和味道特征。 此外,该方法不需要在成熟过程开始和香蕉的储存/运输之间分开处理和重新包装香蕉。 在该方法中,通过将另外的气体插入香蕉包装中开始熟化,使得气体介质包含约2.0%至约5.0%的氧气,约5.0%至约15.0%的二氧化碳,约0.8%至约1.5% %乙烯,其余的气体介质主要是氮气,时间为约0.5至约5秒。 然后调整包装中的气体介质的组成,使得气体介质具有满足以下条件的氧气与二氧化碳的比例:(20.94-B)/ C =约1.8至约3.8; 其中B是气体介质中的氧气的百分比,C是气体介质中二氧化碳的百分比,此外,其中气体介质中的氧气的百分比为约1.0至约6.0,并且碳的百分比 气体介质中的二氧化碳为约3.0至约10.0。
摘要:
A ripening room is disclosed for ripening perishable products, such as fruits and vegetables, and more particularly bananas, in which the air flow and temperature are closely controlled by the room construction and by a cooling control system that archives uniform ripening of the fruit regardless of the physical location of the fruit within the room. These desired results are accomplished using a minimum quantity of energy and cooling capacity by use of an improved cooling controller that gradually changes the temperature setpoint over time to allow the cooling (refrigeration) system to operate near its full capacity without any periods of intense cooling (due to sudden changes of the temperature setpoint, as in the prior art). The uniform ripening is also achieved by an improved air distribution system that provides a greater back pressure in portions of a ripening room that, in conventional designs, receives far too much air flow.
摘要:
A container oxygen control system includes multiple containers to hold perishable goods in a controlled ripening atmosphere composed primarily of nitrogen and oxygen. A first atmosphere control system controls the container atmosphere during the first transportation leg, such as from the place of harvest to a distribution port. The first atmosphere control system has a centralized nitrogen generator and multiple oxygen controllers which are provided for corresponding containers. The nitrogen generator generates a nitrogen enriched stream which is supplied to each oxygen controller. Each oxygen controller has an oxygen sensor to determine the oxygen content of the ripening atmosphere within the container. If the oxygen content remains above a preset threshold level, the oxygen controller injects the nitrogen enriched stream into the container at a constant rate to purge the container in a continuous manner. The container has an exhaust port to exhaust part of the ripening atmosphere from the container. If the oxygen content falls below the threshold level, however, the oxygen controller turns on a mixer to mix the nitrogen enriched stream with ambient air. This mixture is injected into the container to increase the oxygen content of the controlled ripening atmosphere. A second atmosphere control system controls the ripening atmosphere of the containers during a second transportation leg, such as from the port to the stores. The second atmosphere control system has multiple portable oxygen infusion units which mount directly to corresponding containers. The oxygen infusion units sense the oxygen content of the ripening atmosphere within the container, and selectively inject ambient air into the container to increase the oxygen content when it falls below a threshold level.
摘要:
A method for uniformly controlling the ripening of bananas and other perishable products from harvest to delivery, wherein a combination shipping and ripening container having an internal volume capable of receiving and maintaining a controlled atmosphere is provided. Freshly harvested, unripened perishable products are loaded into the container and cooled to a holding temperature in a range of from about 57.degree. to about 70.degree. F. Once the products are stabilized at the desired holding temperature, a controlled atmosphere including ethylene is preferably substantially immediately provided to the internal volume to uniformly initiate ripening of all of the loaded products. Once ripening has been initiated, the ethylene is reduced within the internal volume by displacement with a low oxygen controlled atmosphere, which is maintained within the container during storage, transportation, and delivery procedures. Prior to unloading the ripened products from the container, the atmosphere within the internal volume is returned to normal conditions. Once the loaded products have been stabilized at the desired holding temperature and exposed to the ethylene atmosphere to initiate ripening procedures, adjustments to the controlled atmosphere and temperature within the internal volume can be utilized to "tune" the ripening process as desired to provide ripened products for delivery within a range of timing schedules. The present method can be used with oxygen concentrations in the range of 1% to 8% during the ripening procedure, and with the ethylene concentration reduced to a minimal level of about 25 ppm (to support continuing ripening). Use of very low oxygen concentrations and minimal ethylene concentrations in the ranges listed above can produce a fruit product in which its pulp is more ripe than indicated by the color of its peel.