CN107712712A - 一种虾味桃干的加工方法 - Google Patents
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Abstract
本发明公开了一种虾味桃干的加工方法,其特征在于,包括以下方面:(1)预处理,将黄桃清洗后使用紫外灯进行杀菌,放入喷淋机传送带上进行喷碱处理;(2)打浆,将黄桃果肉放入打浆机中搅拌,然后加入芦荟、荷花提取液等成分进行搅拌混合;(3)成型,将混合果浆浇灌至条形模中超声波振荡,然后在烘箱内烘制;(4)发酵,将新鲜豆浆经离心后取上部清液静置2‑3天,对黄桃果条表面进行喷洒进行发酵;(5)杀菌烘干,将发酵黄桃果条进行高温杀菌,再放入烘箱内烘干处理;(6)封装,将黄桃果干置于35‑38℃条件下静置,降至室温进行密封包装,制得黄桃干。
Description
技术领域
本发明属于水果深加工技术领域,具体涉及一种虾味桃干的加工方法。
背景技术
桃干,又名枭景、干桃、气桃,为桃新鲜成熟果实经加工后制成的干燥果实,其加工方法简单,可以较好的延长桃的食用保质期,并且烘干方法可以较大程度上保持桃中营养成分含量和活性。以黄桃为原料加工制作桃干,黄桃皮薄、肉质柔软,不适宜长途运输和长期保存,采用低温储藏方法虽然可以延长食用保鲜期,但是其储藏成本昂贵;传统黄桃加工中采用将桃肉切成片状或条状,再进行清洗、热烫等加工处理,在低温加热下,护色成分和添加成分对黄桃果肉的渗透效果较差,黄桃果肉在加工中容易发生酶促褐变和非酶促褐变,所加工桃干外观品质和口感较差;桃干加工一般会采用熏硫处理,其可抑制果肉中酶促和非酶促褐变反应,可以起到护色和杀菌效果,但是熏硫中所产生的亚硫酸盐类物质具有一定毒性,在桃干中形成残留,对人体健康存在潜在风险。
发明内容
本发明针对现有的问题:传统黄桃加工中采用将桃肉切成片状或条状,再进行清洗、热烫等加工处理,在低温加热下,护色成分和添加成分对黄桃果肉的渗透效果较差,黄桃果肉在加工中容易发生酶促褐变和非酶促褐变,所加工桃干外观品质和口感较差;桃干加工一般会采用熏硫处理,其可抑制果肉中酶促和非酶促褐变反应,可以起到护色和杀菌效果,但是熏硫中所产生的亚硫酸盐类物质具有一定毒性,在桃干中形成残留,对人体健康存在潜在风险。为解决上述问题,本发明提供了一种虾味桃干的加工方法。
本发明是通过以下技术方案实现的:
一种虾味黄桃干的加工方法,包括以下步骤:
(1)预处理:将黄桃清洗后使用紫外灯进行杀菌,降低黄桃所携带腐败微生物菌种,放入喷淋机传送带上进行喷碱处理,使果肉和果皮分离,提高脱皮效率,喷淋液温度为40-43℃,时间8-10S,经清洗、脱皮和分半加工后制得黄桃果肉;
(2)打浆:将黄桃果肉放入打浆机中搅拌12-14min,然后加入芦荟、虾粉、蜂蜜和柠檬酸升温至38-42℃搅拌20-23min,再加入菊花提取液、荷花提取液和金银花提取液超声波振荡8-10min,制得混合果浆;对果肉采用打浆方法可使果浆与其他成分任意调配,提高护色效果和营养成分含量;
(3)成型:将混合果浆浇灌至条形模中超声波振荡2-3min,然后放入65-70℃烘箱内烘制20-25min,取出后切成4-6cm长度,制得黄桃果条;改变了原有桃干形态固定,处理成分渗透效果差的缺点,可将桃干加工成各种外观形状,提高对消费者的吸引力;
(4)发酵:将新鲜豆浆经离心后取上部清液,在24-27℃阴凉通风处放置2-3天,其中含有丰富的发酵微生物菌种,对黄桃果条表面进行喷洒放入恒温箱内进行发酵,先在18-23℃温度下放置6-8h,再降温至5-7℃静置3-4h,可对黄桃进行降解,提高黄桃营养成分吸收率和成分之间的相互融合,使黄桃干口感更加柔软和鲜香,制得发酵黄桃果条;
(5)杀菌烘干:将发酵黄桃果条进行高温杀菌,起到杀菌和降低营养成分损失作用,再放入烘箱内烘干处理,温度57-60℃,时间35-40min,每10min烘箱降压至50kPa一次,降低外界渗透压,提高黄桃烘干效果,制得黄桃果干;
(6)封装:将黄桃果干置于35-38℃条件下静置2-3h,可使果干软化,提高其口感和香味,降至室温进行密封包装,制得黄桃干。
步骤(1)所述的杀菌,其紫外灯光照强度为210-240lux,时间26-30min。
步骤(1)所述的喷碱处理,其为氢氧化钠溶液,质量浓度为2%-3%。
步骤(2)所述的混合果浆,其各配制成分质量计份为:
黄桃83-87份、芦荟12-15份、虾粉7-10份、蜂蜜6-8份、柠檬酸5-7份、菊花提取液2-4份、荷花提取液1-3份、金银花提取液1-2份。
步骤(3)所述的条形模,其长度为14-16cm,宽度和厚度均为0.3-0.5cm。
步骤(4)所述的上部清液,其喷洒量为黄桃果条质量的2%-3%。
步骤(5)所述的高温杀菌,其温度为121-124℃,时间为10-12S。
本发明相比现有技术具有以下优点:预处理方法,紫外杀菌可降低黄桃所携带腐败微生物菌种,使用热喷淋氢氧化钠溶液方法,可使黄桃果肉与果皮分离,提高去皮效率。打浆方法,将黄桃果肉在不加水情况进行打浆,所制成黄桃果浆再加入其它配制成分和护色成分,可使果浆与其他成分任意调配,提高护色效果和营养成分含量;芦荟和柠檬酸具有较好的抗氧化和杀菌效果,可提高黄桃干护色和杀菌性能,蜂蜜和虾粉可增加桃干的口感风味,而使用菊花、荷花和金银花可提高其香味和功能保健价值。成型方法,通过对黄桃果肉打浆和成型,改变了原有桃干形态固定,处理成分渗透效果差的缺点,可将桃干加工成各种外观形状,提高对消费者的吸引力。发酵方法,经静置处理得豆浆上清液其中含有丰富的发酵菌种,喷洒至黄桃果条上可对黄桃进行降解,提高黄桃营养成分吸收率和成分之间的相互融合,使黄桃干口感更加柔软和鲜香。杀菌烘干,采用高温短暂杀菌可有效对黄桃果条中致病菌、腐败菌进行灭活,同时避免长时间高温对黄桃中营养成分破坏。封装方法,将烘干后黄桃果干置于恒温条件下静置,可使果干软化,提高其口感和香味。
具体实施方式
实施例1:
一种虾味黄桃干的加工方法,包括以下步骤:
(1)预处理:将黄桃清洗后使用紫外灯进行杀菌,降低黄桃所携带腐败微生物菌种,放入喷淋机传送带上进行喷碱处理,使果肉和果皮分离,提高脱皮效率,喷淋液温度为41℃,时间9S,经清洗、脱皮和分半加工后制得黄桃果肉;
(2)打浆:将黄桃果肉放入打浆机中搅拌13min,然后加入芦荟、虾粉、蜂蜜和柠檬酸升温至39℃搅拌21min,再加入菊花提取液、荷花提取液和金银花提取液超声波振荡8.5min,制得混合果浆;对果肉采用打浆方法可使果浆与其他成分任意调配,提高护色效果和营养成分含量;
(3)成型:将混合果浆浇灌至条形模中超声波振荡2.5min,然后放入66℃烘箱内烘制21min,取出后切成4-6cm长度,制得黄桃果条;改变了原有桃干形态固定,处理成分渗透效果差的缺点,可将桃干加工成各种外观形状,提高对消费者的吸引力;
(4)发酵:将新鲜豆浆经离心后取上部清液,在25℃阴凉通风处放置2天,其中含有丰富的发酵微生物菌种,对黄桃果条表面进行喷洒放入恒温箱内进行发酵,先在19℃温度下放置6.5h,再降温至5.5℃静置3.5h,可对黄桃进行降解,提高黄桃营养成分吸收率和成分之间的相互融合,使黄桃干口感更加柔软和鲜香,制得发酵黄桃果条;
(5)杀菌烘干:将发酵黄桃果条进行高温杀菌,起到杀菌和降低营养成分损失作用,再放入烘箱内烘干处理,温度58℃,时间36min,每10min烘箱降压至50kPa一次,降低外界渗透压,提高黄桃烘干效果,制得黄桃果干;
(6)封装:将黄桃果干置于36℃条件下静置2.5h,可使果干软化,提高其口感和香味,降至室温进行密封包装,制得黄桃干。
步骤(1)所述的杀菌,其紫外灯光照强度为220lux,时间27min。
步骤(1)所述的喷碱处理,其为氢氧化钠溶液,质量浓度为2.2%。
步骤(2)所述的混合果浆,其各配制成分质量计份为:
黄桃84份、芦荟13份、虾粉8份、蜂蜜6.2份、柠檬酸5.4份、菊花提取液2.5份、荷花提取液1.2份、金银花提取液1.4份。
步骤(3)所述的条形模,其长度为14-16cm,宽度和厚度均为0.3-0.5cm。
步骤(4)所述的上部清液,其喷洒量为黄桃果条质量的2.4%。
步骤(5)所述的高温杀菌,其温度为122℃,时间为11。
实施例2:
(1)预处理:将黄桃清洗后使用紫外灯进行杀菌,降低黄桃所携带腐败微生物菌种,放入喷淋机传送带上进行喷碱处理,使果肉和果皮分离,提高脱皮效率,喷淋液温度温度为42℃,时间10S,经清洗、脱皮和分半加工后制得黄桃果肉;
(2)打浆:将黄桃果肉放入打浆机中搅拌14min,然后加入芦荟、虾粉、蜂蜜和柠檬酸升温至41℃搅拌22min,再加入菊花提取液、荷花提取液和金银花提取液超声波振荡10min,制得混合果浆;对果肉采用打浆方法可使果浆与其他成分任意调配,提高护色效果和营养成分含量;
(3)成型:将混合果浆浇灌至条形模中超声波振荡3min,然后放入69℃烘箱内烘制24min,取出后切成4-6cm长度,制得黄桃果条;改变了原有桃干形态固定,处理成分渗透效果差的缺点,可将桃干加工成各种外观形状,提高对消费者的吸引力;
(4)发酵:将新鲜豆浆经离心后取上部清液,在26℃阴凉通风处放置3天,其中含有丰富的发酵微生物菌种,对黄桃果条表面进行喷洒放入恒温箱内进行发酵,先在22℃温度下放置7.5h,再降温至6.5℃静置4h,可对黄桃进行降解,提高黄桃营养成分吸收率和成分之间的相互融合,使黄桃干口感更加柔软和鲜香,制得发酵黄桃果条;
(5)杀菌烘干:将发酵黄桃果条进行高温杀菌,起到杀菌和降低营养成分损失作用,再放入烘箱内烘干处理,温度59℃,时间39min,每10min烘箱降压至50kPa一次,降低外界渗透压,提高黄桃烘干效果,制得黄桃果干;
(6)封装:将黄桃果干置于37℃条件下静置3h,可使果干软化,提高其口感和香味,降至室温进行密封包装,制得黄桃干。
步骤(1)所述的杀菌,其紫外灯光照强度为230lux,时间29min。
步骤(1)所述的喷碱处理,其为氢氧化钠溶液,质量浓度为2.8%。
步骤(2)所述的混合果浆,其各配制成分质量计份为:
黄桃86份、芦荟14份、虾粉9份、蜂蜜7.6份、柠檬酸6.8份、菊花提取液3.5份、荷花提取液2.7份、金银花提取液1.8份。
步骤(3)所述的条形模,其长度为14-16cm,宽度和厚度均为0.3-0.5cm。
步骤(4)所述的上部清液,其喷洒量为黄桃果条质量的2.8%。
步骤(5)所述的高温杀菌,其温度为123℃,时间为12S。
对比1:
本对比1与实施例1比较,未进行步骤(1)预处理,其他步骤与实施例1相同。
对比2:
本对比2与实施例1比较,未进行步骤(2)中打浆,其他步骤与实施例1相同。
对比3:
本对比3与实施例1比较,未进行步骤(2)中芦荟、菊花提取液等成分使用,其他步骤与实施例1相同。
对比4:
本对比4与实施例2比较,未进行步骤(4)中发酵,其他步骤与实施例2相同。
对比5:
本对比5与实施例2比较,未进行步骤(6)中密封前静置方法,其他步骤与实施例2相同。
对照组:
对照组黄桃干加工工艺为切分去核、清洗、热烫、熏硫、干燥和包装,未进行预处理、打浆、芦荟等添加成分、发酵和静置方法。
对实施例1、实施例2、对比1、对比2、对比3、对比4、对比5及对照组实验方案,统计黄桃干保质期、褐变反应、经济增加值和口感评价。
口感评价:其中﹢﹢﹢﹢﹢为很好,﹢﹢﹢﹢为较好,﹢﹢﹢为一般,﹢﹢为差,﹢为很差;各评价样本容量均为110个,以超样本2/3评价结果为准。
实验数据:
项目 | 保质期 月 | 褐变反应程度 | 经济增加值% | 口感评价 |
实施例1 | 17 | 无 | 21.4 | ﹢﹢﹢﹢ |
实施例2 | 18 | 无 | 20.8 | ﹢﹢﹢﹢ |
对比1 | 16 | 无 | 21.1 | ﹢﹢﹢﹢ |
对比2 | 14 | 轻微 | 12.1 | ﹢﹢ |
对比3 | 16 | 较严重 | 16.3 | ﹢﹢﹢ |
对比4 | 18 | 轻微 | 13.9 | ﹢﹢ |
对比5 | 18 | 无 | 21.3 | ﹢﹢ |
对照组 | 11 | 较严重 | 0.0 | ﹢ |
综合结果:本发明所制黄桃干,与对照比较,保质期提高7个月,褐变反应程度降低,经济增加值提高20.8%以上,口感柔软、香味浓厚。使用打浆方法,可延长保质期3个月,经济增加值提高9.3%;而添加芦荟等成分和发酵方法,可提高经济增加值5.1%、6.9%,密封前静置处理可提高黄桃干的口感。
Claims (7)
1.一种虾味黄桃干的加工方法,其特征在于,包括以下步骤:
(1)预处理:将黄桃清洗后使用紫外灯进行杀菌,放入喷淋机传送带上进行喷碱处理,喷淋液温度为40-43℃,时间8-10S,经清洗、脱皮和分半加工后制得黄桃果肉;
(2)打浆:将黄桃果肉放入打浆机中搅拌12-14min,然后加入芦荟、虾粉、蜂蜜和柠檬酸升温至38-42℃搅拌20-23min,再加入菊花提取液、荷花提取液和金银花提取液超声波振荡8-10min,制得混合果浆;
(3)成型:将混合果浆浇灌至条形模中超声波振荡2-3min,然后放入65-70℃烘箱内烘制20-25min,取出后切成4-6cm长度,制得黄桃果条;
(4)发酵:将新鲜豆浆经离心后取上部清液,在24-27℃阴凉通风处放置2-3天,对黄桃果条表面进行喷洒放入恒温箱内进行发酵,先在18-23℃温度下放置6-8h,再降温至5-7℃静置3-4h,制得发酵黄桃果条;
(5)杀菌烘干:将发酵黄桃果条进行高温杀菌,再放入烘箱内烘干处理,温度57-60℃,时间35-40min,每10min烘箱降压至50kPa一次,制得黄桃果干;
(6)封装:将黄桃果干置于35-38℃条件下静置2-3h,降至室温进行密封包装,制得黄桃干。
2.如权利要求1所述的虾味黄桃干的加工方法,其特征在于,步骤(1)所述的杀菌,其紫外灯光照强度为210-240lux,时间26-30min。
3.如权利要求1所述的虾味黄桃干的加工方法,其特征在于,步骤(1)所述的喷碱处理,其为氢氧化钠溶液,质量浓度为2%-3%。
4.如权利要求1所述的虾味黄桃干的加工方法,其特征在于,步骤(2)所述的混合果浆,其各配制成分质量计份为:
黄桃83-87份、芦荟12-15份、虾粉7-10份、蜂蜜6-8份、柠檬酸5-7份、菊花提取液2-4份、荷花提取液1-3份、金银花提取液1-2份。
5.如权利要求1所述的虾味黄桃干的加工方法,其特征在于,步骤(3)所述的条形模,其长度为14-16cm,宽度和厚度均为0.3-0.5cm。
6.如权利要求1所述的虾味黄桃干的加工方法,其特征在于,步骤(4)所述的上部清液,其喷洒量为黄桃果条质量的2%-3%。
7.如权利要求1所述的虾味黄桃干的加工方法,其特征在于,步骤(5)所述的高温杀菌,其温度为121-124℃,时间为10-12S。
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