CN107668690A - 一种低糖南瓜酱的加工方法 - Google Patents
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Abstract
本发明公开一种低糖南瓜酱的加工方法。将备用南瓜块进行切块、蒸熟、打浆、配料、浓缩、灌装、密封和灭菌后得到成品,具体为将选择成熟好、无霉变的南瓜洗净,去皮、去蒂,作为备用瓜块,将备用南瓜块切成瓜坯,蒸熟,再用打浆机打浆,得到的浆液入锅,加热浓缩,同时加入海藻酸钠,稍候加柠檬酸,继续浓缩至可溶性固形物在55%以上出锅,将瓶盖消毒后,趁热装罐,灌装时温度应高于65℃,加盖密封后,用沸水杀菌20min即为成品。本发明的一种低糖南瓜酱的加工方法,提高农产品的科技附加值,增强产品的竞争力,得到低糖的南瓜酱,无防腐剂的添加,为绿色天然产品,本发明绿色环保,制备过程无污染,且适合糖尿病人的食用。
Description
技术领域
本发明涉及一种低糖南瓜酱的加工方法,属于农产品深加工技术领域。
背景技术
南瓜富含葡萄糖、甘露醇、戊聚糖、果胶、类胡萝卜素,并含有丰富的钾、钙、镁、硒、铁、锌、钴等微量元素和多种维生素,此外还含有瓜氨酸、精氨酸等多种游离氨基酸及大量的生理活性物质,脂肪含量却非常低。
南瓜属葫芦科草本植物,含有丰富的营养成分,南瓜中除含有淀粉、糖、蛋白质、脂肪、各种氨基酸和维生素外,还含有胡萝卜素、葫芦巴碱、腺嘌呤、甘露醇、果胶、可溶性纤维素等多种成分,其维生素C及维生素A的含量几乎为瓜菜之首。南瓜对预防和治疗糖尿病具有独特疗效,对高血压、动脉粥样硬化、肝炎、肝硬化、肾炎、前列腺炎等疾病也有明显效果。因此,南瓜及其制品被世界上公认为理想的天然保健食品。基于南瓜独特的保健作用与良好的加工适应性,我们开发出南瓜系列产品,以满足市场的需求。
南瓜产量高,原料易得,价格低廉,是生产各种风味食品的良好原料。我国南瓜资源非常丰富,生产南瓜系列产品投资少,见效快,是利用农村物产资源,发展农村经济,增加农民收入的途径之一。
现有南瓜深加工存在的问题如下:
1、产品的质量不仅在加工过程中受加工条件影响,在其贮藏与销售过程中也会受到影响,然而对南瓜贮藏与包装技术的研究较为薄弱;
2、南瓜副产品综合利用方面的研究有待进一步加强,尚未真正实现南瓜资源的全效利用;
3、形成规模化生产和建立规范化的质量管理体系。
发明内容
有鉴于此,本发明提供了一种低糖南瓜酱的加工方法,提高农产品的科技附加值,增强产品的竞争力,得到低糖的南瓜酱,无防腐剂的添加,为绿色天然产品,本发明绿色环保,制备过程无污染,且适合糖尿病人的食用。
本发明通过以下技术手段解决上述技术问题,一种低糖南瓜酱的加工方法,将备用南瓜块进行切块、蒸熟、打浆、配料、浓缩、灌装、密封和灭菌后得到成品,具体为将选择成熟好、无霉变的南瓜洗净,去皮、去蒂,作为备用瓜块,将备用南瓜块切成4—5cm长、1cm宽和1cm厚的瓜坯,蒸熟,再用打浆机打浆,得到的浆液入锅,加热浓缩,同时加入海藻酸钠,稍候加柠檬酸调pH值为3.5,继续浓缩至可溶性固形物在55%以上出锅,将瓶盖消毒后,趁热装罐,灌装时温度应高于65℃,加盖密封后,用沸水杀菌20min即为成品,配料过程为将南瓜浆、海藻酸钠和柠檬酸按照质量比50:0.25:0.3混合。
南瓜洗净采用清洗机,浆液入锅采用的是化糖锅,浓缩采用真空浓缩机进行浓缩,装罐采用的灌装机,加盖密封采用真空封灌机。
所述加热浓缩过程真空度为-0.08~-0.09Mpa,浓缩温度为60-80℃。
本产品属于低糖果酱,具有独特的风味,适合于糖尿病人和不宜摄入高热量的人群食用。
本发明工艺简单,可以得到低糖的南瓜酱,成本低,且无防腐剂的添加,为绿色天然的产品。
本发明的有益效果是:
1、提高农产品的科技附加值,增强产品的竞争力;
2、得到低糖的南瓜酱,无防腐剂的添加,为绿色天然产品;
3、本发明绿色环保,制备过程无污染,且适合糖尿病人的食用。
具体实施方式
以下将结合具体实施例对本发明进行详细说明,本实施例的一种低糖南瓜酱的加工方法,将备用南瓜块进行切块、蒸熟、打浆、配料、浓缩、灌装、密封和灭菌后得到成品,具体为将选择成熟好、无霉变的南瓜洗净,去皮、去蒂,作为备用瓜块,将备用南瓜块切成4—5cm长、1cm宽和1cm厚的瓜坯,蒸熟,再用打浆机打浆,得到的浆液入锅,加热浓缩,同时加入海藻酸钠,稍候加柠檬酸调pH值为3.5,继续浓缩至可溶性固形物在55%以上出锅,将瓶盖消毒后,趁热装罐,灌装时温度应高于65℃,加盖密封后,用沸水杀菌20min即为成品,配料过程为将南瓜浆、海藻酸钠和柠檬酸按照质量比50:0.25:0.3混合。
南瓜洗净采用清洗机,浆液入锅采用的是化糖锅,浓缩采用真空浓缩机进行浓缩,装罐采用的灌装机,加盖密封采用真空封灌机。
所述加热浓缩过程真空度为-0.08~-0.09Mpa,浓缩温度为60-80℃。
实施例1
一种低糖南瓜酱的加工方法,将备用南瓜块进行切块、蒸熟、打浆、配料、浓缩、灌装、密封和灭菌后得到成品,具体为将选择成熟好、无霉变的南瓜洗净,去皮、去蒂,作为备用瓜块,将备用南瓜块切成4.35cm长、1cm宽和1cm厚的瓜坯,蒸熟,再用打浆机打浆,得到的浆液入锅,加热浓缩,同时加入海藻酸钠,稍候加柠檬酸调pH值为3.5,继续浓缩至可溶性固形物在55%以上出锅,将瓶盖消毒后,趁热装罐,灌装时温度应高于65℃,加盖密封后,用沸水杀菌20min即为成品,配料过程为将南瓜浆、海藻酸钠和柠檬酸按照质量比50:0.25:0.3混合。
南瓜洗净采用清洗机,浆液入锅采用的是化糖锅,浓缩采用真空浓缩机进行浓缩,装罐采用的灌装机,加盖密封采用真空封灌机。
所述加热浓缩过程真空度为-0.085Mpa,浓缩温度为74℃。
实施例2
一种低糖南瓜酱的加工方法,将备用南瓜块进行切块、蒸熟、打浆、配料、浓缩、灌装、密封和灭菌后得到成品,具体为将选择成熟好、无霉变的南瓜洗净,去皮、去蒂,作为备用瓜块,将备用南瓜块切成4.8cm长、1cm宽和1cm厚的瓜坯,蒸熟,再用打浆机打浆,得到的浆液入锅,加热浓缩,同时加入海藻酸钠,稍候加柠檬酸调pH值为3.5,继续浓缩至可溶性固形物在55%以上出锅,将瓶盖消毒后,趁热装罐,灌装时温度应高于65℃,加盖密封后,用沸水杀菌20min即为成品,配料过程为将南瓜浆、海藻酸钠和柠檬酸按照质量比50:0.25:0.3混合。
南瓜洗净采用清洗机,浆液入锅采用的是化糖锅,浓缩采用真空浓缩机进行浓缩,装罐采用的灌装机,加盖密封采用真空封灌机。
所述加热浓缩过程真空度为-0.084Mpa,浓缩温度为70℃。
实施例3
一种低糖南瓜酱的加工方法,将备用南瓜块进行切块、蒸熟、打浆、配料、浓缩、灌装、密封和灭菌后得到成品,具体为将选择成熟好、无霉变的南瓜洗净,去皮、去蒂,作为备用瓜块,将备用南瓜块切成4.3cm长、1cm宽和1cm厚的瓜坯,蒸熟,再用打浆机打浆,得到的浆液入锅,加热浓缩,同时加入海藻酸钠,稍候加柠檬酸调pH值为3.5,继续浓缩至可溶性固形物在55%以上出锅,将瓶盖消毒后,趁热装罐,灌装时温度应高于65℃,加盖密封后,用沸水杀菌20min即为成品,配料过程为将南瓜浆、海藻酸钠和柠檬酸按照质量比50:0.25:0.3混合。
南瓜洗净采用清洗机,浆液入锅采用的是化糖锅,浓缩采用真空浓缩机进行浓缩,装罐采用的灌装机,加盖密封采用真空封灌机。
所述加热浓缩过程真空度为-0.081Mpa,浓缩温度为78℃。
最后说明的是,以上实施例仅用以说明本发明的技术方案而非限制,尽管参照较佳实施例对本发明进行了详细说明,本领域的普通技术人员应当理解,可以对本发明的技术方案进行修改或者等同替换,而不脱离本发明技术方案的宗旨和范围,其均应涵盖在本发明的权利要求范围当中。
Claims (3)
1.一种低糖南瓜酱的加工方法,其特征在于,将备用南瓜块进行切块、蒸熟、打浆、配料、浓缩、灌装、密封和灭菌后得到成品,具体为将选择成熟好、无霉变的南瓜洗净,去皮、去蒂,作为备用瓜块,将备用南瓜块切成4—5cm长、1cm宽和1cm厚的瓜坯,蒸熟,再用打浆机打浆,得到的浆液入锅,加热浓缩,同时加入海藻酸钠,稍候加柠檬酸调pH值为3.5,继续浓缩至可溶性固形物在55%以上出锅,将瓶盖消毒后,趁热装罐,灌装时温度高于65℃,加盖密封后,用沸水杀菌20min即为成品,配料过程为将南瓜浆、海藻酸钠和柠檬酸按照质量比50:0.25:0.3混合。
2.根据权利要求1所述的一种低糖南瓜酱的加工方法,其特征在于:南瓜洗净采用清洗机,浆液入锅采用的是化糖锅,浓缩采用真空浓缩机进行浓缩,装罐采用的灌装机,加盖密封采用真空封灌机。
3.根据权利要求1所述的一种低糖南瓜酱的加工方法,其特征在于:所述加热浓缩过程真空度为-0.08~-0.09Mpa,浓缩温度为60-80℃。
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