CN114052209A - 一种新型即食休闲小包装卤牛肉及其低温加工工艺 - Google Patents
一种新型即食休闲小包装卤牛肉及其低温加工工艺 Download PDFInfo
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Abstract
本发明提供一种新型即食休闲小包装卤牛肉及其低温加工工艺,工艺包括:原料清洗、切片、滚揉腌制、压差膨化、卤液浸泡、沥水、真空包装、超声杀菌、冷却等工艺。此工艺省时,降低能耗,降低成本,环境友好。由本发明工艺生产的休闲卤牛肉成品,卤香适口、滋味鲜美,肉质柔韧适口,咀嚼无渣,为低钠盐、低糖、低脂、高蛋白、含膳食纤维的休闲卤牛肉产品,绿色健康,采用独立休闲真空小包装,携带食用方便。本发明所得产品色泽红润、柔韧有弹性、咀嚼无渣、卤香浓郁,营养丰富,携带食用方便,深受消费者喜爱。
Description
技术领域
本发明涉及食品加工技术领域,特别是一种新型即食休闲小包装卤牛肉及其低温加工工艺。
背景技术
酱卤肉制品是我国典型的传统肉制品,因其卤香浓郁、咸鲜适中,有适度嚼劲、咀嚼无渣,深受人们喜爱。然而,目前市场上卤牛肉多为市场上200g~500g左右小包装售卖产品,以及街头巷尾的即卤即售产品。工艺上,工业化生产是采用传统的加热卤制方法,即牛肉→修整→腌制→卤汤卤制→冷却→包装→二次高温杀菌→冷却等工艺加工而成。采用卤汤卤制工艺,卤煮营养流失较多,香辛料利用率低,冷却包装时间较长,同时会使操作环境升温,从而加剧操作人员的不适;高温杀菌会导致损失营养、口感粉烂,降低质量,增加能耗。街头巷尾的即卤即售产品,无包装,大多只能就地销售,保质期短,无法远销。为此,需要研究相应的技术方案给予解决。
发明内容
基于背景技术存在的问题,本技术发明了一种新型即食休闲小包装卤牛肉及其低温加工工艺,所得产品色泽红润、柔韧有弹性、咀嚼无渣、卤香浓郁,营养丰富,携带食用方便,深受消费者喜爱。
为解决上述问题,本发明所采取的技术方案如下:
一种新型即食休闲小包装卤牛肉及其低温加工工艺,包括以下步骤:
(1)清洗、切片:将牛腱子肉清洗干净,沥水至无水滴出,切成约长为60-70mm、宽20-25mm、厚10-15mm、重量为30~50g的牛肉坯;
(2)滚揉腌制:将上述牛肉坯置于滚揉机中,加入腌制液,然后于4-6℃滚揉2-4h,转至4℃左右静腌9-12h;
(3)压差膨化:将腌制好的牛肉,放入压差膨化机的装料盘中,装料厚度15-20mm;
(4)卤液浸泡:按照牛肉:卤制液≈1:2的比例,将经压差膨化后的牛肉坯放入冷却的卤制液中浸泡;
(5)调配:将经卤液浸泡的牛肉坯捞出沥水至无滴水现象,然后置于调配混合机中,加入调配料,充分混合均匀;
(6)真空包装:将调配好的肉坯,装入食品级的耐高温真空包装袋中进行真空包装,要求封口平整、无破袋、无漏气;
(7)超声杀菌:对真空包装好的小包装卤牛肉进行温度协同双频超声杀菌。
作为上述技术方案的改进,所述步骤(2)中腌制液的构成为:以香辛料液为基液,添加钠钾调和盐1.8-2.2%、料酒0.9-1.2%,复合磷酸盐0.1-0.4%、亚硝酸钠0.008-0.01%、异抗坏血酸钠0.05%、乙基麦芽酚0.0009-0.002%;腌制液:牛肉≈0.04~0.06:1,钠钾调和盐中钠钾比例约为17:3。
作为上述技术方案的改进,所述步骤(3)中压差膨化工艺为:正压→负压→冷却三段,压差膨化条件:第一段:物料罐温度80℃-90℃,压力0.1MPa-0.3MPa,保持时间8-10min;第二段:压力为(-0.098)-(-0.01)MPa,温度80℃-85℃,持续时间90-120min;第三段:冷却温度40℃-60℃,冷却30-45min。
作为上述技术方案的改进,所述步骤(4)中卤液浸泡条件为,卤制液温度6-12℃,浸泡时间为20-30min。
作为上述技术方案的改进,所述步骤(5)中调配料配比为:食盐0.1-0.3%、海藻糖0.9-1.5%、芝麻油0.8-1.2%、熟香芝麻0.8-1.2%、辣椒粉0.8-1.2%、食醋0.1-0.3%、乌梅提取物0.3-0.5%,0.015-0.03%壳寡糖。
作为上述技术方案的改进,所述步骤(7)中超声杀菌条件为双频超声杀菌,频率28KHz+33KHz,超声功率1000-1500W,超声温度70-80℃,超声时间15-30min。
本发明与现有技术相比较,本发明的实施效果如下:
(1)营养得以保证。采用低温腌制、压差膨化、双频低温超声杀菌等绿色低温加工工艺,整个加工温度不高于90℃,最大限度地保留了卤牛肉的营养成分。
(2)产品感官指标优良,绿色安全。整个加工工艺温度不超过90℃,产品卤牛肉嫩度适中,没有高温产品的肉质松软发粉无嚼劲感;采用卤味腌制、低温卤制液浸泡,卤香浓郁;同时采用部分钾盐取代钠盐,并增添壳寡糖,为低钠盐、低脂高蛋白健康产品。
(3)采用卤味腌制、低温卤制液浸泡取代卤制后的冷却加工工艺,无卤制液废料产生、无污染环境。
(4)采用香辛料液滚揉腌制,入味效果好并且提高了香辛料的利用率;此外,因无卤水卤煮工艺,从而无卤煮废料产生。
(5)保质期得以保证。新工艺采用“压差膨化+真空包装+低温双频超声杀菌”联合工艺,并辅以具有保健功效的新资源食品壳寡糖、适度调低pH值协同抑菌,使杀菌效率大幅度提高。
附图说明
图1为本发明加工工艺流程图。
具体实施方式
下面将结合具体的实施例来说明本发明的内容。
实施例1:
(1)清洗、切片:将牛腱子肉清洗干净,沥水至无水滴出,切成约长为60mm、宽20mm、厚10mm、重量为30g的牛肉坯;
(2)滚揉腌制:将上述牛肉坯置于滚揉机中,加入腌制液,腌制液:牛肉坯≈0.05:1,然后于4℃滚揉4h至腌制液全部吸收,转至4℃左右静腌12h。腌制液构成:以香辛料液为基液,添加钠钾调和盐2%、料酒0.9%,复合磷酸盐0.2%、亚硝酸钠0.008%、异抗坏血酸钠0.05%、乙基麦芽酚0.0009%。腌制液:牛肉≈0.05:1,钠钾调和盐中钠钾比例约为17:3;
(3)压差膨化:将腌制好的牛肉,放入压差膨化机的装料盘中,压差膨化工艺为:正压→负压→冷却三段,条件为:第一段:物料罐温度85℃,压力0.3MPa,保持时间10min;第二段:压力为-0.098MPa,温度80℃,持续时间100min;第三段:冷却温度40℃,冷却45min;
(4)卤液浸泡:按照牛肉:卤制液≈1:2的比例,将经压差膨化后的牛肉坯放入冷却的卤制液中浸泡,卤制液浸泡温度8~15℃,浸泡时间为20~30min;
(5)调配:将经卤液浸泡的牛肉坯捞出沥水至无滴水现象,然后置于调配混合机中,加入调配料,充分混合均匀;
调配料(牛肉坯重计)为:食盐0.15%、海藻糖1%、芝麻油1%、熟香芝麻1%、辣椒粉1%、食醋0.3%、乌梅提取物0.5%,0.015%壳寡糖。
(6)真空包装:将调配好的肉坯,装入食品级的耐高温真空包装袋中进行真空包装,要求封口平整、无破袋、无漏气;
(7)超声杀菌:对真空包装好的小包装卤牛肉进行温度协同超声杀菌,超声杀菌条件为双频超声杀菌,频率28KHz+33KHz,超声功率1000W,超声温度75℃,超声时间30min;
(8)冷却保装入库:热风低温干燥再风冷冷却至室温,再包装即可入库。
实施例2:
(1)清洗、切片:将牛腱子肉清洗干净,沥水至无水滴出,切成约长为70mm、宽25mm、厚15mm、重量为45g的牛肉坯;
(2)滚揉腌制:将上述牛肉坯置于滚揉机中,加入腌制液,腌制液:牛肉坯≈0.05:1,然后于6℃滚揉4h至腌制液全部吸收,转至4℃左右静腌12h。腌制液构成:以香辛料液为基液,添加钠钾调和盐2%、料酒0.9%,复合磷酸盐0.2%、亚硝酸钠0.008%、异抗坏血酸钠0.05%、乙基麦芽酚0.0015%;腌制液:牛肉≈0.05:1,钠钾调和盐中钠钾比例约为17:3;
(3)压差膨化:将腌制好的牛肉,放入压差膨化机的装料盘中,压差膨化工艺为:正压→负压→冷却三段,条件为:第一段:物料罐温度90℃,压力0.3MPa,保持时间10min;第二段:压力为-0.098MPa,温度85℃,持续时间120min;第三段:冷却温度50℃,冷却45min;
(4)卤液浸泡:按照牛肉:卤制液≈1:2的比例,将经压差膨化后的牛肉坯放入冷却的卤制液中浸泡,卤制液浸泡温度10℃,浸泡时间为30min;
(5)调配:将经卤液浸泡的牛肉坯捞出沥水至无滴水现象,然后置于调配混合机中,加入调配料,充分混合均匀;
调配料(牛肉坯重计)为:食盐0.3%、海藻糖1%、芝麻油1%、熟香芝麻1%、辣椒粉1%、食醋0.3%、乌梅提取物0.4%,0.025%壳寡糖。
(6)真空包装:将调配好的肉坯,装入食品级的耐高温真空包装袋中进行真空包装,要求封口平整、无破袋、无漏气;
(7)超声杀菌:对真空包装好的小包装卤牛肉进行温度协同超声杀菌,超声杀菌条件为双频超声杀菌,频率28KHz+33KHz,超声功率1500W,超声温度80℃,超声时间30min;
(8)冷却保装入库:热风低温干燥再风冷冷却至室温,再包装即可入库。
实施例3:
(1)清洗、切片:将牛腱子肉清洗干净,沥水至无水滴出,切成约长为65mm、宽23mm、厚12mm、重量为40g的牛肉坯;
(2)滚揉腌制:将上述牛肉坯置于滚揉机中,加入腌制液,腌制液:牛肉坯≈0.05:1,然后于5℃滚揉3h至腌制液全部吸收,转至4℃左右静腌10h,腌制液构成:以香辛料液为基液,添加钠钾调和盐2%、料酒0.9%,复合磷酸盐0.2%、亚硝酸钠0.008%、异抗坏血酸钠0.05%、乙基麦芽酚0.002%。腌制液:牛肉≈0.05:1,钠钾调和盐中钠钾比例约为17:3;
(3)压差膨化:将腌制好的牛肉,放入压差膨化机的装料盘中,压差膨化工艺为:正压→负压→冷却三段,条件为:第一段:物料罐温度86℃,压力0.2MPa,保持时间9min;第二段:压力为-0.08MPa,温度80℃,持续时间110min;第三段:冷却温度55℃,冷却45min;
(4)卤液浸泡:按照牛肉:卤制液≈1:2的比例,将经压差膨化后的牛肉坯放入冷却的卤制液中浸泡,卤制液浸泡温度12℃,浸泡时间为25min;
(5)调配:将经卤液浸泡的牛肉坯捞出沥水至无滴水现象,然后置于调配混合机中,加入调配料,充分混合均匀;
调配料(牛肉坯重计)为:食盐0.3%、海藻糖1%、芝麻油1%、熟香芝麻1%、辣椒粉1%、食醋0.3%、乌梅提取物0.3%,0.03%壳寡糖。
(6)真空包装:将调配好的肉坯,装入食品级的耐高温真空包装袋中进行真空包装,要求封口平整、无破袋、无漏气;
(7)超声杀菌:对真空包装好的小包装卤牛肉进行温度协同超声杀菌,超声杀菌条件为双频超声杀菌,频率28KHz+33KHz,超声功率1200W,超声温度78℃,超声时间25min;
(8)冷却保装入库:热风低温干燥再风冷冷却至室温,再包装即可入库。
本发明制作的即食卤牛肉高蛋白、高营养、低胆固醇、低脂肪。牛肉嫩度适中,口感俱佳,肉香浓郁,滋味鲜美,采用真空小包装,方便携带食用。
取新鲜(或解冻后)牛腱子肉作为原料,按照下述方法测定各项指标:
感官评价:将被测样品倒在洁净的白瓷盘中,用肉眼直接观察色泽,形态,嗅其气味,品尝滋味,结果表明本产品质地致密、软硬适中、有弹性,有嚼劲、适口性良好,有卤牛肉特有的卤香味,无异味,色泽均匀、有卤牛肉特有酱卤色。评价标准见表1。
表1卤牛肉感官评定标准
色泽测定:根据CIELAB表色系统,L*为明亮度指数,a*和b*为彩度指数。L*值越大表明样品颜色越接近于白色;当a*值为正值时,值越大表明样品颜色越趋于红色;当a*值为负值时,绝对值越大说明样品颜色越趋于绿色;当b*值为正值时,值越大说明样品颜色越趋于黄色;当b*值为负值时,绝对值越大说明样品颜色越趋于蓝色。每个样测6个点,取平均值。
质构测定:采用TA-XT plus物性仪,根据卤牛肉的质构特性进行测定。弹性及内聚性的测定:将卤牛肉切成1cm×1cm×1cm的小块状,选用探头为P/36R的圆柱型探头,测试前速度5.00mm/s,测中速度5.00mm/s,测试后速度5.00mm/s,测试间隔时间6.0s,压缩比50%。硬度及咀嚼性的测定:将卤牛肉切成1cm×1cm×1cm的小块状,选取探头为A/MORS的切片型探头,测试前速度5.00mm/s,测中速度5.00mm/s,测试后速度5.00mm/s,切割厚度8.0mm。
出品率测定:先准确称量腌制完成的牛肉重量为m1,然后在牛肉熟化之后称出成品的质量m2。
则牛肉的出品率计算公式为:牛肉的出品率=m2/m1×100%
质构方面,本产品采用低温加工工艺与传统工艺产品在色泽、硬度上几乎无差异,但是,在弹性与咀嚼性方面差异极显著(P<0.01),说明低温加工口感好,有一定的咀嚼性,无传统的粉质感,出品率高出传统产品约11个百分点,能耗低,感官品质更好。具体见表2。
表2低温加工工艺产品与市售同类产品比较
注:该传统工艺产品的生产工艺流程为:牛肉→解冻、清洗→修整→腌制(12h)→卤汤卤制(100℃,90min)→冷却(至室温)→包装→二次高温杀菌(121℃,20~30min)→冷却。
以上内容是结合具体的实施例对本发明所作的详细说明,不能认定本发明具体实施仅限于这些说明。对于本发明所属技术领域的技术人员来说,在不脱离本发明构思的前提下,还可以做出若干简单推演或替换,都应当视为属于本发明保护的范围。
Claims (6)
1.一种新型即食休闲小包装卤牛肉及其低温加工工艺,其特征在于:包括以下步骤:
(1)清洗、切片:将牛腱子肉清洗干净,沥水至无水滴出,切成约长为60-70mm、宽20-25mm、厚10-15mm、重量为30~50g的牛肉坯;
(2)滚揉腌制:将上述牛肉坯置于滚揉机中,加入腌制液,然后于4-6℃滚揉2-4h,转至4℃左右静腌9-12h;
(3)压差膨化:将腌制好的牛肉,放入压差膨化机的装料盘中,装料厚度15-20mm;
(4)卤液浸泡:按照牛肉:卤制液≈1:2的比例,将经压差膨化后的牛肉坯放入冷却的卤制液中浸泡;
(5)调配:将经卤液浸泡的牛肉坯捞出沥水至无滴水现象,然后置于调配混合机中,加入调配料,充分混合均匀;
(6)真空包装:将调配好的肉坯,装入食品级的耐高温真空包装袋中进行真空包装,要求封口平整、无破袋、无漏气;
(7)超声杀菌:对真空包装好的小包装卤牛肉进行温度协同双频超声杀菌。
2.根据权利要求1所述新型即食休闲小包装卤牛肉及其低温加工工艺,其特征在于:所述步骤(2)中腌制液的构成为:以香辛料液为基液,添加钠钾调和盐1.8-2.2%、料酒0.9-1.2%,复合磷酸盐0.1-0.4%、亚硝酸钠0.008-0.01%、异抗坏血酸钠0.05%、乙基麦芽酚0.0009-0.002%;腌制液:牛肉≈0.04~0.06:1,钠钾调和盐中钠钾比例约为17:3。
3.根据权利要求1所述新型即食休闲小包装卤牛肉及其低温加工工艺,其特征在于:所述步骤(3)中压差膨化工艺为:正压→负压→冷却三段,压差膨化条件:第一段:物料罐温度80℃-90℃,压力0.1MPa-0.3MPa,保持时间8-10min;第二段:压力为(-0.098)-(-0.01)MPa,温度80℃-85℃,持续时间90-120min;第三段:冷却温度40℃-60℃,冷却30-45min。
4.根据权利要求1所述新型即食休闲小包装卤牛肉及其低温加工工艺,其特征在于:所述步骤(4)中卤液浸泡条件为,卤制液温度6-12℃,浸泡时间为20-30min。
5.根据权利要求1所述新型即食休闲小包装卤牛肉及其低温加工工艺,其特征在于:所述步骤(5)中调配料配比为:食盐0.1-0.3%、海藻糖0.9-1.5%、芝麻油0.8-1.2%、熟香芝麻0.8-1.2%、辣椒粉0.8-1.2%、食醋0.1-0.3%、乌梅提取物0.3-0.5%,0.015-0.03%壳寡糖。
6.根据权利要求1所述新型即食休闲小包装卤牛肉及其低温加工工艺,其特征在于:所述步骤(7)中超声杀菌条件为双频超声杀菌,频率28KHz+33KHz,超声功率1000-1500W,超声温度70-80℃,超声时间15-30min。
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