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CN1471361A - 鱼、家禽或肉类的加工方法和设备 - Google Patents

鱼、家禽或肉类的加工方法和设备 Download PDF

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CN1471361A
CN1471361A CNA018178065A CN01817806A CN1471361A CN 1471361 A CN1471361 A CN 1471361A CN A018178065 A CNA018178065 A CN A018178065A CN 01817806 A CN01817806 A CN 01817806A CN 1471361 A CN1471361 A CN 1471361A
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马克・特里
马克·特里
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Global Food Technologies Inc
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B4/00Preservation of meat, sausages, fish or fish products
    • A23B4/06Freezing; Subsequent thawing; Cooling
    • A23B4/08Freezing; Subsequent thawing; Cooling with addition of chemicals or treatment with chemicals before or during cooling, e.g. in the form of an ice coating or frozen block
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B25/00Packaging other articles presenting special problems
    • B65B25/06Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products
    • B65B25/061Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products of fish
    • B65B25/062Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products of fish combined with its conservation
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B4/00Preservation of meat, sausages, fish or fish products
    • A23B4/005Preserving by heating
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B4/00Preservation of meat, sausages, fish or fish products
    • A23B4/06Freezing; Subsequent thawing; Cooling
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B4/00Preservation of meat, sausages, fish or fish products
    • A23B4/12Preserving with acids; Acid fermentation
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B4/00Preservation of meat, sausages, fish or fish products
    • A23B4/14Preserving with chemicals not covered by groups A23B4/02 or A23B4/12
    • A23B4/18Preserving with chemicals not covered by groups A23B4/02 or A23B4/12 in the form of liquids or solids
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B4/00Preservation of meat, sausages, fish or fish products
    • A23B4/14Preserving with chemicals not covered by groups A23B4/02 or A23B4/12
    • A23B4/18Preserving with chemicals not covered by groups A23B4/02 or A23B4/12 in the form of liquids or solids
    • A23B4/20Organic compounds; Microorganisms; Enzymes
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B4/00Preservation of meat, sausages, fish or fish products
    • A23B4/26Apparatus for preserving using liquids ; Processes therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/32Layered products comprising a layer of synthetic resin comprising polyolefins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B25/00Packaging other articles presenting special problems
    • B65B25/06Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products
    • B65B25/061Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products of fish
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B25/00Packaging other articles presenting special problems
    • B65B25/06Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products
    • B65B25/065Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products of meat
    • B65B25/067Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products of meat combined with its conservation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B55/00Preserving, protecting or purifying packages or package contents in association with packaging
    • B65B55/22Immersing contents in protective liquids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D13/00Stationary devices, e.g. cold-rooms
    • F25D13/06Stationary devices, e.g. cold-rooms with conveyors carrying articles to be cooled through the cooling space
    • F25D13/065Articles being submerged in liquid coolant

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Abstract

鱼、家禽和肉制品的加工设备和方法,包括多个连续的浸泡过程,该浸泡是在受控环境里的清洗溶液中进行,所述清洗溶液处于不同的连续温度下,通过这些浸泡使产品在加工站之间输送的时候污染降低,这些浸泡是为将产品封装在复合片材柔软材料中作准备,所述封装是在受控的封闭环境中进行,所述柔软材料能控制经过该材料的选定气体的输送。

Description

鱼、家禽或肉类的加工方法和设备
相关申请
本申请的主题涉及1998年1月27日颁发给M.Terry的美国专利No.5,711,980的主题,并涉及2000年4月18日颁发给M.Terry的美国专利No.6,050,391的主题,这些主题在此作为参考。
发明领域
本发明涉及加工和包装新鲜的鱼或家禽或肉类的设备和工艺,以延缓变质和延长货架期。
发明背景
通常,鱼、家禽或肉制品从捕捉或屠宰到市场销售,都是在冰冻或冷冻条件下加工,以延缓产品腐烂的速度,产品腐烂归因于产品中存在的微生物。通常,在最终加工、包装、销售和展示过程中,通过将产品保持在冷冻条件下,而使这些产品的货架期延长。但是,对于不利于在冷冻、结冰降温(Icing down)或其它使这些产品冷却的条件下加工、包装、销售或展示的产品来讲,也可以用非冷冻条件来作为替换方法,通过该替换方法,即使不能获得在冷冻条件下一样长的货架期,但是也能延长一些货架期。但是,曾经解冻的冷冻产品和非冷冻产品通常一离开结冰或冷冻环境很快就变质,这是因为产品表面上和产品中存在微生物,这些微生物从最初加工时就存在,而且在温度升高时能很快繁殖。众所周知,田地或果园或葡萄园中收获的新鲜产品在收获时就有抵抗变质的自然免疫力,与这些新鲜产品相比,鱼、家禽和肉的新鲜产品从捕捉或屠杀开始就更易于快速变质。
发明内容
根据本发明,鱼、家禽和肉制品最初经过一系列不同环境被加工,这些环境有助于使产品呼吸率循环并且可以明显减少内部或表面病原体浓度,这些病原体会使产品在温度升高时腐烂。由此制成的产品即使在冷冻和解冻后,其货架期也被延长,而且其可销售性好,提高了销售额,减少了较长的加工、销售、和零售时期的损失。
附图简述
附图1是根据本发明的用于加工产品的连续环境的直观图;
附图2是显示本发明工艺的流程图;
附图3是复合片材的透视图,该复合片材适用于包装加工的产品,以有选择地控制其呼吸率。
发明详述
现在参考附图1和2,它们显示了产品加工线和包含几个环境的工艺的直观图,根据本发明,如图2的流程图所示,产品13经过这些环境被加工出来。特别的是,装配三个连续的环境9、10、11来接收鱼、家禽或肉制品13,这些鱼、家禽或肉制品预先经过清洗、称量、切片、或在捕捉或杀死寄生动物后从原始自然状态以其它方式制备或清理。第一个环境9包括一个槽15,该槽包含一种清洁水溶液(或消毒水溶液)和抗微生物剂例如过醋酸,过醋酸是一种无色、无嗅、无味的混合物(市售的叫TSUNAM100),这种抗微生物剂可以冷却到大约32°-35°F,并且以每百万份水含大约85份抗微生物剂的浓度在槽15中循环。环境9内的周围条件包括大约33°-35°F的空气温度,大约98%的相对湿度。按照步骤16,产品13首先在槽15的水溶液中浸泡大约1-3分钟,以有效地使产品产生热震动,这种方式被认为可以提高细胞呼吸率,并且为下一个加工环境准备好产品。正如食品加工行业中公知的一样,大约3分钟的停留时间可以确保表面细菌浓度以每单位浸泡时间的对数率明显减少。单位体积大于大约10磅对应分级粒度的产品13可能需要增加浸泡时间,以使细胞呼吸率达到同等的震动程度(shock elevation),并且减少表面细菌浓度。
因此,产品被“震动”到一个提高细胞呼吸作用的状态,然后,按照步骤17,将产品输送到第二环境10,以浸入槽19中,该槽所含水溶液与槽15中所含溶液相似,并在大约70°-105°F的温度下循环。环境10中的周围条件包括大约60°-95°F的空气温度,大约98%的相对湿度。相信产品13突然暴露在这种温度突然升高的条件下,同时提高了细胞呼吸率,使产品的细胞基质和胞状结构(液泡)扩张,类似于打开产品的微孔,并且促使抗微生物液剂更多地渗透到细胞基质和胞状结构(液泡)中。这样可以促使产品更加彻底地被槽19中的抗微生物液剂渗透,这样抗微生物液剂可以更有效地破坏产品13细胞基质中的病原体。与食品加工行业中公知的方式一样,使产品13在槽19中保持浸泡状态大约3-7分钟(部分取决于分级粒度(cut size)和批量大小),以使内部病原体和任何残余表面细菌以浓度减少的速率明显减少,浓度减少的速率与时间成对数关系变化。
因此,产品13的温度升高,增强了槽19中的抗微生物液剂的吸收,然后按照步骤21,将该产品输送到第三环境11,以浸入槽23中,该槽中所含水溶液与槽15中所含溶液相似,并且在大约32°-35°F的温度循环。环境1l中的周围条件包括大约33°-35°F的空气温度,大约98%的相对湿度。温度这样突然降低,将产品13的细胞呼吸率降低到了邻近静止的状态,并且促进了被吸收液体的排出。与食品加工行业中公知的方式一样,将产品13保持浸入槽23中大约5-10分钟(部分取决于分级粒度和批量大小),以确保被吸收液体最大程度的排出,并且使残余细菌浓度以每单位时间的对数率明显减少。
然后,将产品从环境11移开,并且按照步骤25输送到快速冷冻环境24,或者按照步骤28直接输送到冷却环境中的包装设备26,该设备在大约33°-35°F的温度下工作。因而,如此(通过快速冷冻设备24或直接)输送到包装设备26的产品13便保持在病原体明显减少的静止(或冷冻)状态,所述病原体的不利在于会使根据本发明加工的产品13变质。
仍然参考附图1,环境9、10、11、26中的温度和湿度和空气清洁条件要根据装配在各环境上方的空调设备小心地控制。特别的是,冷却线圈31相对模块化吹风或鼓风装置33设置,该装置相对各个环境9、10、11和包装设备26装配成模块阵列,以将冷却空气从线圈31周围经过细HEPA过滤器35输送到各个环境。特别的是,要选择HEPA过滤器35来限制通道,使能通过该通道的微粒和污染物不大于大约0.3μ的尺寸,因此如果不是全部过滤掉空气传播的细菌和病原体污染物,也可以实现最有效的过滤掉大部分污染物,这些过滤器也可以大约2英尺乘4英尺板的模块阵列装配,以方便清洗和其它维修。另外,将可渗透帘37例如重叠的垂直悬挂的柔性聚氯乙烯(PVC)塑料带设置在环境9、10、11之间,以利于保持相邻环境9、10和10、11中的温度差异,
产品13通过输送机构39在各环境之间输送,该输送机构从一个环境的浸泡槽15、19、23中取出产品13,再输送到下一个环境。而且,在各个浸泡槽15、19、23中,产品13通过被淹没的输送机构41不断地移动穿过浸泡用液体混合物。用这种方法,产品13在各个槽15、19、23中的停留时间可以通过被淹没的输送机构41的移动速度来得到控制,该输送机构的移动速度是从引入产品13的进入位置移动到引出产品13的出口位置的移动速度。而且,槽15、19、23的体积容量可以与各个槽中产品13的停留时间成比例。作为一种选择,产品13进入环境9的速度可受到需要最长产品停留时间的槽23的容量的限制。用这种方法,可以实现产品13的连续加工,而产品不会阻塞在最慢的加工环境中。
在理想情况下,按照步骤25,从最后的加工环境11中引出的产品13可以传统方式在冷冻加工环境24中很快被冷冻,以输送到环境26中的最终包装阶段。作为一种选择,从最后的加工环境11中引出的产品13可以按照步骤25直接输送到最终包装阶段,而不需要将产品冷冻。与前面所述方式一样,包装环境26通过冷却线圈31和吹风或鼓风模块33和HEPA过滤器35,也保持在大约33°F,相对湿度大约98%。在该环境中,为了按照步骤32零售配送(retail distribution)而将产品包裹和密封或者按照步骤30封装时,从快速冷冻环境24输送来的冷冻产品13只有短暂的时间处于非冷冻环境,并且没有机会解冻,所述零售配送在运输和存储期间都是在持续不变的冷冻温度下进行。作为一种选择,为了按照步骤32零售配送而将产品包裹和密封或按照步骤30封装的短时期内,从环境11输送来的产品13保持在非冷冻但静止的状态,所述零售配送在运输和存储期间都是在持续不变的邻近冷冻的温度下进行。
现在参考附图3,该图显示了一个复合柔性片材44,它用于包装根据本发明前述加工得到的产品13。复合片材44是在聚丙烯薄膜47上形成聚乙烯薄膜45的结合层。由于该复合片材44具有理想的透气性,因此该复合片材44最好作为冷冻或静止状态中的产品13的密封包装,便于在零售配送期间以各自需要的温度运输和存储。特别的是,人们发现,这种复合片材44还可以保持内部改良气氛的方式来传输氧气和二氧化碳,其代表性气氛为,氧气大于大约13%,二氧化碳少于大约5.5%。气体穿过复合片材44的传输率可以通过改变组成片材44的薄膜45、47的厚度来改变。
特别的是,对于大约1.0-3.0密耳的聚丙烯薄膜45的厚度,和大约0.5-3.0密耳的聚乙烯薄膜47的厚度来讲,在冷冻或邻近冷冻温度下,复合片材在每小时可以传输大约0.01-50微升的氧气(取决于单个产品13的呼吸率和其相关馏分(cuts)的液上气体的分析测定),这个事实已经得到确定。由于这种关于氧气的透气性减少了可以加速公知KREBS循环的多余氧气(也就是说,在变质过程中产生的碳化合物受到破坏,这种破坏限制或延缓了变质过程),所以这种关于氧气的透气性被认为有利于包装和密封在该复合片材中的产品13。当KREBS循环或变质循环是发生在产品13上或其中产生碳化合物的碳反应的结果时,由于改良气氛中的细菌/病原体/微粒的数量明显减少,而且借助密封环境中的多余氧气来破坏合成的碳化合物的能力明显降低,所以密封产品13的改良环境明显地被改变。
结果就是细菌繁殖慢多了,而且KREBS循环被延缓,因此本发明的设备和方法大大地减少了病原体污染物,所述病原体污染物会使准备零售配送的动物产品容易变质,因此本发明的设备和方法明显提高了零售货架期,并改善了这种产品的包装清洁性。

Claims (20)

1.一种加工鱼、家禽或肉制品的方法,包括:
在第一时段,将产品浸泡在大约32°-35°F的清洗溶液中;
第一时段后的第二时段,将产品浸泡在大约70°-105°F的清洗溶液中;
第二时段后的第三时段,将产品浸泡在大约33°-35°F的清洗溶液中;
在第三时段后,为产品配送作准备。
2.根据权利要求1所述的方法,其特征在于,第一、第二和第三时段在大约1-10分钟的范围内。
3.根据权利要求1所述的方法,其特征在于,第三时段比第二时段长,第二时段比第一时段长。
4.根据权利要求1所述的方法,其特征在于,产品浸泡的周围空气条件包括大约98%的相对湿度。
5.根据权利要求1所述的方法,其特征在于,清洗溶液包括抗微生物剂,浓度大约为一百万份水含大约85份抗微生物剂。
6.根据权利要求1所述的方法,其特征在于,为配送产品作的准备,包括在包装环境内将产品封装在一个封闭包装内,所述包装环境包括大约33°F的空气温度,和大约98%的相对湿度。
7.根据权利要求1所述的方法,还包括,用HEPA过滤法,将加工产品的周围环境中的空气进行过滤。
8.根据权利要求7所述的方法,其特征在于,HEPA过滤法滤出的微粒物质的尺寸大于大约0.3微米。
9.根据权利要求1所述的方法,其特征在于,为配送产品作的准备包括在第三时段后冷冻产品。
10.一种加工鱼或家禽或肉制品的设备,包括:
多个加工站,各个加工站包括一个浸泡室和产品的入口和出口,加工站之一包括一个容器,该容器包含大约70°-105°F的清洁液,用来在其中接受产品,另一个加工站包括一个容器,该容器包含大约32°-35°F的清洁液,用于在其中接受来自某个加工站的产品;和
一个输送系统,用于从另一个加工站的出口输送产品。
11.根据权利要求10所述的设备,包括:
许多加工站中第一个加工站包括一个容器,该容器包含大约33°F的清洁液,在将产品从这里输送到某个加工站之前,用来在其中接受产品。
12.根据权利要求10所述的装置,其特征在于,输送系统在一个封闭环境中工作,并且包括一个被设置来包装产品的包装站,所述封闭环境包括一个空气流通模块,该空气流通模块被设置来过滤该封闭环境中的流通空气中的微粒污染物。
13.一种加工鱼或家禽或肉制品的设备,包括:
多个工作站,包括在不同温度下工作的至少两个浸泡室,各个工作站包括产品输送的入口和出口;
一个输送系统,与至少一个工作站的入口或出口相通,用来输送产品,所述输送系统在包括周围空气的环境中工作;
一个与该环境相关联的结构,用来使周围空气流通经过该环境,以移走来自周围空气的微粒物质。
14.根据权利要求13所述的装置,其特征在于,输送系统包括输送装置,该输送装置与一个工作站的出口相通,以将产品输送到一个包装站,所述包装站在封装产品的环境中工作,产品就在包装站这个环境中进行封装。
15.根据权利要求14所述的装置,其特征在于,该包装站包括一种结构,用来冷却和过滤在其中封装产品的环境中的周围空气。
16.根据权利要求15所述的装置,包括一个空气过滤器,用来排出大于大约0.3μ英寸的微粒污染物,这些微粒污染物来自在其中封装产品的环境中的周围空气。
17.根据权利要求15所述的装置,包括一个结构,相对在其中封装产品的环境设置,用来将其中的周围空气冷却到大约33°-35°F。
18.一种封装产品的材料,包括:
聚丙烯第一柔性层,和与之成一体的,
聚乙烯第二柔性层,形成一个复合柔性片材,该片材具有选择性透气特性,以用来包装加工的产品,该片材作为封装用阻隔层,可以控制关于由此封装的加工产品的气体经过复合柔性片材的输送。
19.根据权利要求18所述的产品封装材料,其特征在于,第一层的厚度在大约1.0至3.0毫米的范围内。
20.根据权利要求18所述的产品封装材料,其特征在于,第二层的厚度在大约0.5至3.0毫米的范围内。
CNA018178065A 2000-11-13 2001-10-16 鱼、家禽或肉类的加工方法和设备 Pending CN1471361A (zh)

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