CN108208140A - 一种基于冷等离子体技术的甜柿综合保鲜方法 - Google Patents

一种基于冷等离子体技术的甜柿综合保鲜方法 Download PDF

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Publication number
CN108208140A
CN108208140A CN201611222738.8A CN201611222738A CN108208140A CN 108208140 A CN108208140 A CN 108208140A CN 201611222738 A CN201611222738 A CN 201611222738A CN 108208140 A CN108208140 A CN 108208140A
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sweet tea
tea persimmon
cold
persimmon
fresh
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屠康
王卓
梅为云
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Nanjing Agricultural University
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Nanjing Agricultural University
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Priority to CN201611222738.8A priority Critical patent/CN108208140A/zh
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00Preservation or chemical ripening of fruit or vegetables
    • A23B7/015Preserving by irradiation or electric treatment without heating effect

Abstract

本发明提供一种甜柿采后贮藏保鲜方法,利用一种新兴的绿色杀菌技术——冷等离子体技术结合纳米包装处理甜柿。将甜柿用纳米材料包装后,进行冷等离子体杀菌处理,可杀死甜柿表面微生物,延长甜柿货架期。本发明为甜柿采后贮藏提供了一种综合保鲜方法,属于农产品采后贮藏保鲜技术。

Description

一种基于冷等离子体技术的甜柿综合保鲜方法
一、技术领域
本发明公开一种果蔬杀菌保鲜方法,属于农产品保鲜技术领域。
二、背景技术
甜柿含有丰富的尼克酸、维生素B1、B2、E、C和胡萝卜素、铁、锌、硒、碘等营养物质。常食甜柿,对防治肠胃病、心血管病、高血压等疾病有一定功效。甜柿因颜色艳丽,口感甜脆,营养价值高等特点深受消费者青睐,国内外市场存在需求量大。然而甜柿采后极易软化,特别是在常温运输中,给甜柿的贮藏和运输带来极大困难。实验表明,常温下甜柿贮藏期仅9天左右。
等离子体是物质的第四态,是在高电压作用下产生的高度电离的气体。其中含有很多活性粒子,如电子、离子、自由基、代谢活性物质、紫外等,能够阻碍微生物的生长。等离子体技术作为一种新兴的、绿色的冷杀菌技术近年来已被应用于食品工业。
纳米包装材料是一种新型包装材料,通过向原有包装材料中加入纳米材料对其进行改性、复合,从而赋予新材料具有纳米材料的表面性质,并表现出很好的抑菌性、力学性能和透气性等,目前已广泛应用于食品、环境、医药等领域。
将功能性纳米材料与等离子体技术结合,能有效激发功能性纳米材料光催化抑菌活性和氧气清除等活性,抑制包装产品表面微生物,有效提高新鲜果蔬的品质,延长货架期。
三、发明内容
针对上述问题,本发明的目的是提供一种杀菌效果好,安全环保的甜柿冷杀菌方法,以提高甜柿采后贮藏品质,延长货架期。
将甜柿置于塑料托盘中,用纳米保鲜薄膜封口,置于冷等离子体设备中,在45~55kV电压下处理30~40s即可。
纳米包装材料为:纳米银或纳米二氧化钛等薄膜;冷等离子体设备为:介质阻挡型(DBD)冷等离子体杀菌设备。
四、附图说明
图1:技术路线图
图2:DBD冷等离子体杀菌示意图
五、具体实施方法
本发明是在甜柿果实采摘后进行包装及杀菌处理的甜柿贮藏保鲜方法。以下结合具体案例对本发明进行进一步详细说明。
实施案例1
七至八成熟的“次郎”(Jiro)甜柿采摘后,进行挑选,选取无机械损伤和病害的果实置于塑料托盘中,每盘放4个。用自动包装机进行封口,封口薄膜为纳米银材料。然后,利用介质阻挡型(DBD)等离子设备在常温常压下进行处理,工作电压为50kV,处理时间为30s。处理后的甜柿于常温下(20℃)保存期可延长至20天左右。
实施案例2
七至八成熟的“次郎”(Jiro)甜柿采摘后,进行挑选,选取无机械损伤和病害的果实置于塑料托盘中,每盘放4个。用纳米二氧化钛薄膜密封。然后,介质阻挡型(DBD)等离子设备在常温常压下进行处理,工作电压为45kV,处理时间为40s。处理后的甜柿于常温下(20℃)保存期可延长至20天左右。

Claims (1)

1.一种基于冷等离子体技术的甜柿综合保鲜方法,其特征在于对将冷等离子体杀菌技术应用于甜柿的采后贮藏保鲜,并结合纳米包装材料,起到协同保鲜的作用,
(1)所述的其特征在于确定了针对于甜柿适宜的冷等离子体处理参数,即工作电压45~55kV和工作时间30~40s,能有效杀死甜柿表面的微生物,同时不会对甜柿品质造成不利影响;
(2)技术步骤在于,首先利用纳米材料进行包装,然后用介质阻挡型(DBD)冷等离子体设备进行杀菌处理。
CN201611222738.8A 2016-12-22 2016-12-22 一种基于冷等离子体技术的甜柿综合保鲜方法 Pending CN108208140A (zh)

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CN109221373A (zh) * 2018-11-13 2019-01-18 苏州屹润食品科技有限公司 一种包装槟榔高压电场低温等离子体冷杀菌方法
CN112586555A (zh) * 2020-12-04 2021-04-02 南京农业大学 鲜切果蔬低温等离子体活化水协同dbd冷杀菌保鲜技术方法

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109221373A (zh) * 2018-11-13 2019-01-18 苏州屹润食品科技有限公司 一种包装槟榔高压电场低温等离子体冷杀菌方法
CN112586555A (zh) * 2020-12-04 2021-04-02 南京农业大学 鲜切果蔬低温等离子体活化水协同dbd冷杀菌保鲜技术方法

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