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    正在阅读:每日辟谣 | 黑了的香蕉、出现结晶的蜂蜜都不能吃了?
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    每日辟谣 | 黑了的香蕉、出现结晶的蜂蜜都不能吃了?

    来源:{getone name="zzc/xinwenwang"/}2026-03-21 05:55:00
    \u003cdiv class=\"rich_media_content\"\u003e\u003c!--NO_AD_ERROR_2--\u003e\u003cp style=\"text-align: justify\"\u003e日常生活中,我们经常会遇到一些看着不太行的食物。\u003c/p\u003e\u003cp style=\"text-align: justify\"\u003e世界卫生组织在《五要点保证食品安全》中提醒:注意保质期,更要留意外观和气味变化,不吃明显变质、发霉、有异味的食物。在做到这些前提下,“长得不好看”并不等于“已经坏了”。\u003c!--NO_AD_0--\u003e\u003c!--EOP_0--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_0--\u003e\u003cp style=\"text-align: justify\"\u003e\u003cspan style=\"color: rgb(0, 112, 192)\"\u003e\u003cstrong\u003e香蕉皮发黑:看着丑,其实更香甜\u003c/strong\u003e\u003c/span\u003e\u003c/p\u003e\u003cp style=\"text-align: justify\"\u003e香蕉成熟时,果皮叶绿素会分解,酚类在多酚氧化酶作用下褐变,形成黑斑,这是正常成熟过程,而不是“坏了”。\u003c/p\u003e\u003cp style=\"text-align: justify\"\u003e\u003c!--IMG_0--\u003e\u003c/p\u003e\u003cp style=\"text-align: justify\"\u003e一般来说,只要果皮只是局部发黑或有小黑点,没有大面积软烂、渗液;剥开后果肉颜色正常、无霉点和黑褐色腐败斑块;闻起来没有刺鼻酒味或酸败味,口感柔软不黏糊、无异味,就仍然可以放心吃。\u003c!--NO_AD_1--\u003e\u003c!--EOP_1--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_1--\u003e\u003cp style=\"text-align: justify\"\u003e需要丢弃的是:整根黑褐、明显软塌渗水;果肉大面积发黑、长毛、发黏;一剥开就有刺鼻酒味或酸败味。\u003c/p\u003e\u003cp style=\"text-align: justify\"\u003e青香蕉直接放进冰箱,果皮往往整片发黑,这是不耐冷导致的低温冷害叠加褐变。只要果肉仍正常,就可以吃。\u003c/p\u003e\u003cp style=\"text-align: justify\"\u003e\u003cspan style=\"color: rgb(0, 112, 192)\"\u003e\u003cstrong\u003e蜂蜜结晶变浑浊:正常理化变化\u003c/strong\u003e\u003c/span\u003e\u003c/p\u003e\u003cp style=\"text-align: justify\"\u003e一瓶蜂蜜放久了,底部出现白色或浅黄色结晶,看起来浑浊,甚至颜色加深,多数情况下只是正常变化。\u003c/p\u003e\u003cp style=\"text-align: justify\"\u003e\u003c!--IMG_1--\u003e\u003c/p\u003e\u003cp style=\"text-align: justify\"\u003e蜂蜜是高糖、低水活性食品,\u003c!--SECURE_LINK_BEGIN_0--\u003e葡萄糖\u003c!--SECURE_LINK_END_0--\u003e在高浓度、低温下容易析出结晶;不同花源结晶速度不同,油菜蜜常见快速结晶,洋槐蜜因果糖比例高,可更久保持清亮。\u003c!--NO_AD_2--\u003e\u003c!--EOP_2--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_2--\u003e\u003cp style=\"text-align: justify\"\u003e储存时糖类和含氮物质还会缓慢发生美拉德反应,加上部分酚类氧化,颜色会逐渐加深,但不等于变质。\u003c/p\u003e\u003cp style=\"text-align: justify\"\u003e研究表明,蜂蜜的高糖浓度、低水活性、低pH,以及\u003c!--SECURE_LINK_BEGIN_1--\u003e过氧化氢\u003c!--SECURE_LINK_END_1--\u003e、多酚等因素共同赋予其较强抑菌能力,在密封、干燥、常温避光保存下,长期都不易被一般细菌、酵母污染而腐败。\u003c!--NO_AD_3--\u003e\u003c!--EOP_3--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_3--\u003e\u003cp style=\"text-align: justify\"\u003e通常可以放心食用的结晶蜂蜜,特点是:只是结晶或颜色略深,瓶内无异常鼓泡和分层,闻起来仍是花香或蜜香,没有酸败味、霉味、酒精味,入口也没有刺鼻酸味。\u003c!--NO_AD_4--\u003e\u003c!--EOP_4--\u003e\u003c/p\u003e\u003c!--PARAGRAPH_4--\u003e\u003cp style=\"text-align: justify\"\u003e若打开就有明显酸败或酒味,大量起泡、有气体冲出,表面长霉或有可疑异物,则应丢弃。\u003c/p\u003e\u003cp style=\"text-align: justify\"\u003e想恢复澄清,可以把蜂蜜瓶放入�℃的温水中隔水缓慢加热(不超�℃),待结晶溶解后取出,避免高温久煮,以减少风味和部分活性成分的损失。\u003c/p\u003e\u003cp style=\"text-align: justify\"\u003e需要注意的是:无论是否结晶,蜂蜜都不适𴡑岁以下婴儿食用,以预防婴儿肉毒中毒。\u003c/p\u003e\u003cp style=\"text-align: justify\"\u003e来源:“科学辟谣”微信公众号\u003cbr/\u003e广州日报新花城编辑:张宇\u003c/p\u003e\u003cstyle\u003e.rich_media_content{--news-tabel-th-night-color: #444444;--news-font-day-color: #333;--news-font-night-color: 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