乳糖 - 百度百科
乳糖是以单体分子形式存在于乳中的唯一双糖，由葡萄糖和半乳糖通过1,4-糖苷键连接而成，经乳腺内乳糖合成酶作用产生。 以人乳中含量最为丰富，约为7.2g/l00mL。
乳糖 - 维基百科，自由的百科全书
乳糖 （英語： Lactose）是一种 雙醣，由一分子β-D- 半乳糖 和一分子β-D- 葡萄糖 在β-1，4-位形成糖苷键相连。 分子式 C 12 H 22 O 11 （Jmol立體圖 （页面存档备份，存于 互联网档案馆））， 莫耳质量 342.3克。 有两种 端基异构体：α-乳糖和β-乳糖，在水溶液中可互相转化。 α-乳糖很容易结合一分子結晶水。 该化合物是白色，水溶性，非吸湿性固体，具有温和的甜味。 它被用于食品工业 [1]。 甜度是 蔗糖 的约五分之一， 乳 中2-8%的固体成分为乳糖。 幼小的 哺乳动物 肠道 …
Lactose - Wikipedia
Lactose, or milk sugar, is a disaccharide composed of galactose and glucose and has the molecular formula C 12 H 22 O 11. Lactose makes up around 2–8% of milk (by mass). The name comes from lact (gen. lactis), the Latin word for milk, plus the suffix -ose used to name sugars.
5 Foods High in Lactose to Avoid - WebMD
Sep 15, 2024 · Lactose is a sugar naturally found in dairy products like milk, butter, yogurt, and more. Learn which 5 foods to avoid for lactose intolerance.
Lactose Intolerance – Cause, Symptoms, Diagnosis, Treatment - WebMD
Feb 22, 2024 · Millions of Americans can’t digest a certain sugar in milk and milk products called lactose. If you’re one of them, you have lactose intolerance. The condition isn’t harmful, but it can be...
What Is Lactose? - Cleveland Clinic Health Essentials
Oct 29, 2024 · Lactose is a disaccharide — meaning it’s a complex sugar formed from two monosaccharides (or simple sugars). As a component of breast milk, it’s long been associated with numerous benefits: It helps your body absorb minerals like calcium, magnesium and zinc — all of which are important for bone health.
*Note: These are estimates only; actual lactose content may vary by specific product, brand, or recipe. Please check labels or with manufacturer for specific information.
Lactose: Characteristics, Food and Drug-Related Applications, and …
Lactose is the principal sugar of mammal milk, with a few exceptions (e.g., sea lions and walruses), and is the source of nourishment for newborns [1]. After weaning, mammals are not capable of digesting milk, and humans are the only species that continue to consume and digest milk daily, thanks to a phenomenon of gene–culture coevolution [2].
Lactose intolerance - Wikipedia
Lactose intolerance is caused by a lessened ability or a complete inability to digest lactose, a sugar found in dairy products. [1] Humans vary in the amount of lactose they can tolerate before symptoms develop. [1] Symptoms may include abdominal pain, bloating, diarrhea, flatulence, and nausea. [1] These symptoms typically start thirty minutes to …
Lactose - an overview | ScienceDirect Topics
Lactose is a disaccharide derived from glucose and galactose, produced by the mammary glands. You might find these chapters and articles relevant to this topic. DAVID S. NEWBURG, SUZANNE H. NEUBAUER, in Handbook of Milk Composition, …