CN107652709A - 一种栗苞棕色素的制备方法及用途 - Google Patents

一种栗苞棕色素的制备方法及用途 Download PDF

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CN107652709A
CN107652709A CN201711060026.5A CN201711060026A CN107652709A CN 107652709 A CN107652709 A CN 107652709A CN 201711060026 A CN201711060026 A CN 201711060026A CN 107652709 A CN107652709 A CN 107652709A
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Abstract

一种栗苞棕色素的制备方法及用途，经预处理后的栗苞以弱碱性水为溶剂加温萃取，滤液经真空浓缩、喷雾干燥得粉体天然棕色素。该色素可用于纺织品和日化品的着色，使相关产品兼具抗菌消炎、抗氧化、抗紫外辐射的功效。

Description

一种栗苞棕色素的制备方法及用途
技术领域
本发明属于天然植物功效成分提取范畴，具体涉及一种从栗苞中提取天然棕色素的制备方法及用途。
背景技术
板栗在我国大部分地区均有种植，产量世界第一，其中栗苞为最外层多刺的壳斗，约占果实总量的近半，采收栗子后栗苞即被丢于野外成农林废弃物。板栗除果仁具营养而味美、食之有益人体健康外，废弃的栗苞也富含多酚、色素、单宁等具抗菌消炎、抗氧化、抗光辐射功效的多种物质，古籍《天工开物》中就有以栗苞、桑椹为料印染其他物品的记载，另外多部传统医书也有栗苞入药疗病的表述。
在现代技术中，色素是构成工业产品缤纷色彩的重要原、辅材料，有合成和天然两类之分，合成色素为高分子化工产品，对人体和环境有一定的毒副作用，各国政府对其制造和应用已有所限制；而天然色素大多是从无毒植物中提取而来，在食品、医药、日化及其他工业产品中均有应用，且越来越广泛，将逐步取代合成色素。但在现有技术方案中，大多是使用有机溶剂及化学助剂来进行生产，既增加成本，又是生产过程中的不安全因素，还存在着污染产品本身及环境的隐患。其实在没有特别限制或要求、且作为一般工业产品的着色剂使用时，更多地可以参考古方记载并结合现代技术，以简洁的工艺制造出价廉物美的各种达标的天然色素产品，满足现代社会对健康和环保的要求。据报导己有一些案例，对某些植物所含的天然色素进行纯物理方式提取，并运用于食品、饮料的着色而获成功。
发明内容
本发明的目的在于以简洁、安全、环保的方式，从废弃的栗苞中提取出天然棕色素，并用于某些工业品的着色，使产品在具备悦目的颜色时兼具有助人体健康的功效。
技术方案：以弱碱性水为溶剂沸煮经预处理后的栗苞，使其中的色素充分溶于水中，固液分离后滤液经除杂并脱溶得天然棕色素；该色素用于纺织品和日化品中，使产品在着色的同时兼具抗菌消炎、抗氧化、抗紫外辐射的功效。
上述方案中，所述预处理，是将栗苞露天铺放、沐浴阳光雨露自然发酵，经酶解和光解作用约一月余，再晒干并除杂后破碎成40目的物料备用。
所述弱碱性水，是将去离子水用食用碱调成PH值9的水溶剂。
所述沸煮，是将上述栗苞和15倍栗苞质量的弱碱性水共入罐搅拌沸煮，由此大量色素溶入水中，150分钟后过滤分离，滤渣再加入10倍栗苞质量的弱碱性水复煮120分钟后固液分离。
所述滤液除杂脱溶，是合并上述两次滤液，静置24小时后除去底部沉淀层，上清液过300目筛除去悬浮物后，再经真空浓缩、喷雾干燥得粉体栗苞棕色素。
该棕色素属黄酮类天然着色剂，能耐受220度高温，性质稳定且着色力强，具抗菌消炎、抗氧化、抗光辐射等作用，其可使某些工业产品在着色的同时兼具美观和有益健康的功效。
所述用于纺织品，是以水复溶该色素粉末，按常规印染方法，使棉、麻、丝、毛等纺织品染上悦目的棕色，并兼具抗菌消炎、抗氧化、抗紫外辐射的功效。
所述用于日化品，是直接将该色素粉末按需加入香皂、洗液、牙膏等日化品的生产中，使产品在着色的同时兼具抗菌消炎、抗氧化、抗紫外辐射的功效。
本发明有益效果是：
A、以废弃的板栗苞为原料，价廉易得、变废为宝且环保。
、不使用有毒副作用的醚、醇、苯等有机溶剂，仅以水作为溶剂并循环利用，成本低，生产过程安全无污染。
、基本以物理手段简易提取，设备投入少，产品天然、无毒害及化学残留，有益健康。
、着色效果自然、美观且伴植物淡香，是取代合成色素的较理想品种之一。
具体实施方式
下面以实施例做进一步说明，不限制本发明。
实施例1，将收集的新鲜栗苞露天平铺成25公分厚的堆层，沐浴阳光雨露自然发酵，每7天上下翻动一次，致酶解、光解作用均匀，约一个月后栗苞颜色由棕黄转为棕黑色，再避雨晒干、除杂后破碎成40目物料备用。再将去离子水用食用碱调成PH值9的弱碱性水备用。按1﹕15的固液比，将上述料与水共入罐中搅拌沸煮，大量棕色素溶于水中，经150分钟后过滤分离，滤渣再加入10倍物料质量的弱碱性水，复煮120分钟后固液分离，残渣转入另道工序沤制生物肥。合并两次滤液，静置24小时后除去底部沉淀层，上清液过300目筛进一步除去悬浮物，将所得澄清液按常规方法真空浓缩、喷雾干燥，得粉体栗苞天然棕色素，得率13%。
实施例2，将上述色素粉末溶于水中，按常规染色工艺对棉、麻、丝、毛类纺织品进行印染，均呈现悦目的棕色，着色效果好，其色牢度、耐光度等指标经检测均较为理想，且织物伴有植物淡香，具抗菌消炎、抗氧化、抗紫外辐射的功效。
实施例3，在香皂、洗液、牙膏等日化品的生产过程中，按比例直接加入该色素粉末，产品均呈现艳丽透明的棕色并伴有植物淡香，检测对比加入该色素前后的各项指标，在抗菌消炎、抗氧化、抗光辐射能力方面有所增强，其余指标皆无异常变化，为达标产品。

Claims (2)

1.一种栗苞棕色素的制备方法及用途，其特征是：以弱碱性水为溶剂沸煮经预处理后的栗苞，使其中的色素充分溶于水中，固液分离后滤液经除杂并脱溶得天然棕色素；该色素分别用于纺织品和日化品中，使产品在着色的同时兼具抗菌消炎、抗氧化、抗紫外辐射的功效。
2.根据权利要求1所述的一种栗苞棕色素的制备方法及用途，其特征是：
(1)将栗苞露天铺放、沐浴阳光雨露自然发酵，经酶解和光解作用约一月余，再晒干并除杂后破碎成40目备用。
(2)将处理后的栗苞与15倍栗苞质量的弱碱性水共入罐中，搅拌沸煮150分钟后过滤分离，滤渣再加入10倍栗苞质量的弱碱性水，复煮120分钟后固液分离。
(3)合并两次滤液，静置24小时后取上清液过300目筛，再经真空浓缩、喷雾干燥，得粉体栗苞棕色素。
(4)以水复溶该色素粉末，按常规印染方法，使棉、麻、丝、毛等纺织品染上悦目的棕色，并兼具抗菌消炎、抗氧化、抗紫外辐射的功效。
(5)直接将该色素粉末用于香皂、洗液、牙膏等日化品的生产中，使产品在着色的同时兼具抗菌消炎、抗氧化、抗紫外辐射的功效。
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1569970A (zh) * 2003-07-16 2005-01-26 中国科学院沈阳应用生态研究所 一种板栗壳天然棕色素的提取方法
CN1765206A (zh) * 2004-10-29 2006-05-03 中国科学院沈阳应用生态研究所 一种板栗壳天然棕色素的生产方法
CN102115611A (zh) * 2010-01-04 2011-07-06 中国科学院过程工程研究所 一种板栗苞汽爆联产色素、栲胶和活性炭的方法
CN105669633A (zh) * 2016-03-20 2016-06-15 李斌 一种板栗苞联产多酚、色素、单宁、原花青素及木粉的方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1569970A (zh) * 2003-07-16 2005-01-26 中国科学院沈阳应用生态研究所 一种板栗壳天然棕色素的提取方法
CN1765206A (zh) * 2004-10-29 2006-05-03 中国科学院沈阳应用生态研究所 一种板栗壳天然棕色素的生产方法
CN102115611A (zh) * 2010-01-04 2011-07-06 中国科学院过程工程研究所 一种板栗苞汽爆联产色素、栲胶和活性炭的方法
CN105669633A (zh) * 2016-03-20 2016-06-15 李斌 一种板栗苞联产多酚、色素、单宁、原花青素及木粉的方法

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Application publication date: 20180202