八泽湖大闸蟹和阳澄湖大闸蟹有啥区别
八泽湖大闸蟹和阳澄湖大闸蟹有啥区别
推荐回答(1个)
洪泽湖大闸蟹营养丰富,含有多种维生素。同时,洪泽湖大闸蟹还具有舒筋益气、理胃消食、通经络、散诸热、散淤血之功效。现代研究发现,蟹壳含有一种物质——甲壳质,甲壳质中可提炼出一种称为ACOS-6的物质,它具有低毒性免疫激活性质,动物实验已证实,该物质可抑制癌细胞的增殖和转移。但是由于我们不能够直接城掉螃蟹壳,所以只能通过提取成胶囊获取。
特征
一是白肚:贴泥的脐腹甲壳,晶莹洁白,无墨色斑点;洪泽湖大闸蟹肚壳一般都是白色的,白得不同寻常,它白中带青,有光泽,给人晶莹洁白的感觉。这是因为清澈的洪泽湖湖底长有茂密的猪鬃草和其它水草,栖息在这里的大闸蟹常在水草上爬行,与水草发生磨擦,犹如器皿在清水中不停地洗涮、上光。因此,洪泽湖大闸蟹的白肚外观上能给人一种玉质般的美感。
二是青背:洪泽湖大闸蟹的蟹壳呈青泥色,平滑而有光泽;由于这种色彩大方洁净,惹人喜爱,故称青壳蟹。这是清澈的洪泽湖水赋予它的独特外表。洪泽湖大闸蟹的青背上像涂上一层明油,粗看近似灰色,细看水晶灯,灰中带青,青而发亮,和其他螃蟹相比,显得神气十足,简直如同威风凛凛、光彩照人的铁甲将军。
三是黄毛:洪泽湖大闸蟹的蟹腿的毛长而呈黄色,根根挺拔;洪泽湖大闸蟹两螯八腿上的茸毛都是金黄色的,且长达3-4厘米,但是普通的螃蟹不仅爪呈灰褐色,而且螃蟹的茸毛也短。
四是金爪:洪泽湖大闸蟹的蟹爪金黄,坚实有力,放在玻璃板上,八足挺立,双螯腾空,脐背隆起,威风凛凛。洪泽湖大闸蟹蟹爪近似上等烟丝的金黄色,故又名金爪蟹,而普通螃蟹常与泥浆接触,则呈灰褐色。洪泽湖大闸蟹的“金爪”,也是洪泽湖得天独厚的自然环境赋予它的,螃蟹在湖底爬行,爪子常插入黄泥砂砾,常踩踏水草,这不仅比常在松软的泥浆中爬行洁净得多;而且由于湖底坚硬、平坦,宛如一个天然运动场,蟹在上面爬行,自然就练出了与其魁梧身材相称的坚强有力的爪子。
阳澄湖蟹的形态和肉质,在螃蟹家族中,大大的与众不同。形态有四大特征:一是青背,蟹壳呈青灰色,平滑而有光泽;二是白肚,贴泥的肚脐、甲壳晶,莹洁白,没有黑色。
阳澄湖清水大闸蟹青背、白肚、金爪、黄毛,个体强壮厚实,煮后呈亮橘红色,口味鲜甜。个体在2。5两以上的母蟹、3.5两以上的公蟹通常用水煮、清蒸的方法,个体较小的则以面拖、酒呛或者是翻炒为佳。因螃蟹性寒,煮时、食用时多加姜片解寒,还需以菊擦手解腥。所谓:“酒未敌腥还用菊,性防积冷定须姜。”讲究的食客还有专门的吃蟹工具:剪刀、夹、刺、榔头等,俗称蟹八件。精敲细剥,其味无穷。
外观特点阳澄湖大闸蟹形成的与众不同的四大特点:一是青背,阳澄湖蟹壳成青灰色,平滑而有光泽;二是白肚,贴泥的脐腹,晶莹洁白;三是黄毛,脚毛长黄挺拔;四是金爪,阳澄湖蟹爪金黄坚挺有力,放在玻璃上能八足挺立,双螯腾空。
识别方法
阳澄湖蟹身不沾泥,俗称清水大蟹,体大膘肥,青壳白肚,金爪黄毛
饱满度(捏的方法):阳澄湖大闸蟹区别于其他螃蟹在于肉质饱满度,可采用捏压大闸蟹小腿部分感觉肉质是否饱满,若不饱满时,捏上去则会有空洞感。
青背(烧的方法):大闸蟹背为蟹壳青,青得发亮、清爽,烧熟后、显红色。其他湖区的螃蟹泥土色重,烧熟后为灰中带有红色。
白肚(刷的方法):大闸蟹肚皮呈白色,白得有光泽,但不是纯白,因为受湖中水渍原因,应略带点水渍黄,不同于其他湖区螃蟹肚呈灰色,采用刷子轻轻刷的壳的话,可以刷下略微水渍色附着于壳体的脏污。
金爪(可放光滑玻璃或者地砖上试验):大闸蟹爪尖上呈烟丝般金黄色,二螯八爪肉感强、强劲有力;放在光滑的玻璃板或者地砖上能撑起,爬行自如。其他湖区蟹爪单薄无力,爪尖上没有明显的金黄色。
黄毛(可采用挤压鳌毛的方法):蟹螯上的绒毛密而软,毛须清爽,显黄色。其他湖区蟹毛带浓重泥土色,不清洁。此方法需特别注意安全,容易被夹到手指。
选大闸蟹要五看看蟹壳壳贝色泽鲜明,有光泽,且呈墨绿色的,一般都体厚坚实;呈黄色的,大多较瘦弱;能挑选到“金毛金爪”的更好。看肚脐肚脐突出来的,一般都脂肥膏满:凹进去的,大多是膘体不足。当用手拿蟹时还要觉得够“重”,这才挑到肥美多膏,蟹肉丰满的大闸蟹。看蟹足足爪结实,蟹足上的“脚毛”丛生,一般都膘足老健;无毛的,大多是体软无膘。看雌雄俗话说:“农历八月挑雌蟹,九月过后选雄蟹”。
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