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Showing posts with label jelly 果冻. Show all posts
Showing posts with label jelly 果冻. Show all posts

Monday, January 21, 2013

Sea Bird Nest 海底燕窝


Sea bird nest / SBN (海底燕窝) is Eucheuma cottonii, a seaweed of the Areschougiaceae family.  It had been major ingredient in carrageenan production, an important gelatin substitute in food industry, for their gelling, thickening and stabilizing properties.

In recent years, Eucheuma cottonii was gradually introduced to consumer as health product, similar to the highly invaluable birdnest / EBN.   Due to its lower cost, it is widely used in beverages, mixed with fruit juices, eaten as salad, made into jelly, or tongsui.

SBN smells fishy, if not properly washed.  The smell can be remove with prolonged soaking and repeated washing.  After soaking and washing, the SBN will lost its smelly odor, and the coloration.  It is now spongy, chewy and translucent. 


EBN easily costs up to USD 1,000/kg even for the lowest grade, while the best dried SBN costs only a USD 12/kg !

Sunday, July 1, 2012

菜燕 vs 果冻


菜燕(Agar)也叫大菜糕,是一种东方食品。由紅褐藻類(Gelidium amansii 等藻类),或海藻(Sphaerococcus euchema)提煉而來。

菜燕含琼脂糖(agarose)和琼脂胶(agaropectin)。两者都是多糖纤维,可有效帮助肠道运动。

生菜燕是白色半透明的,市面上可買到粉狀、角狀、條狀、絲狀等等不同型態。在食品加工的用途上,可做布丁、果凍、茶凍、咖啡凍等等。

使用時需要先在水中加熱至85°C左右溶化到看不見顆粒為止,然後在其中添加想加入的甜味食材或是水果粒就可做成菜燕凍,或是甜點表層的凝膠。温度降至32°C左右便凝固。



菜燕与果冻外表虽然相似,但菜燕口感较脆、易碎,不比果冻弹口难化,不难分辨。果冻由动物膠原蛋白提炼而成,素食者、穆斯林、兴都教徒等敬而远之。  


果凍(Gelatin dessert, Jelly, Jello)是一種西方甜食。由动物,尤其是牛、猪的膠原蛋白(Collagen)提炼而来。

果凍呈半固體狀,由食用明膠(Gelatin)加热水、糖、色素、香精製成。市面出售的果凍有已凝固成形既食的,也有未凝固成形粉末状。

果冻的鲜艳色泽,是加入色素、香精而成,吃多无益。而且,果冻富弹性又不易溶化。小孩往往是吸食果冻,再加上边吃边玩,边吃边说话,就很容易造成软滑的果冻吸入气管,形成阻塞,使小孩窒息而死。

Gelatinous Dessert 凝胶状甜点

除了燕菜,类似其凝胶状的食品有仙草,爱玉冰,凉粉等,都是植物天然胶质使其凝固。龟苓膏则由受保护动物金钱龟龟板、土获苓、甘草 等中药制成。而豆花却以盐卤或石膏点卤豆浆凝固。



thickening agent
animal / plant source
燕菜
agar
植物胶质
gelatin
Gelidium amansii
石花菜,
Gracilaria lichenoides
菊花心江蓠,
Sphaerococcus compressus
仙草
grass jelly
植物胶质+ 
淀粉 
gelatin + starch
Mesona chinensis,
Mesona palustris,
Cyclea barbata,
Melastoma polyanthum

龟苓膏
 
胶原蛋白
collagen
Cuora trifasciata
金钱龟

爱玉冰

植物胶质
gelatin
Ficus pumila var. awkeotsang
爱玉子
凉粉
淀粉
starch
Vigna radiata
绿豆
豆花
coagulants
E509 calcium chloride /
E516 calcium sulfate /
 E518 magnesium chloride /  
E575 gluconolactone )

果冻
jelly
胶原蛋白
collagen
cattle bones,
bovine hides,
pork skins