科学与数学foodrenegade.com
橙汁里的秘密成分
The Secret Ingredient in Orange Juice
2011 — 2015，它一次次回到首页
黑点是上首页（≥ 50 分）的那次投稿，空心点是没冲上去的投稿，点越大分数越高。
导读
这篇文章声称超市里的橙汁在脱氧储罐中长期储存后会失去风味，厂商随后会添加由橙皮和精油制成的'香精包'来恢复味道。文章由此质疑'100%纯天然'橙汁的宣传，但评论者普遍指出其论据主要来自二手转述，缺乏可靠证据。
为什么经久不衰：它触及'加工食品营销 vs 真实成分'这一长期话题，而评论区对文章的质疑和补充本身也很有价值。
HN 评论精选
果汁的真正问题不是香精包，而是去纤维后糖分极易过量摄入。
果汁去掉了纤维等有益成分，本质上就是浓缩果糖。一杯苹果汁要用6-8个苹果，你一次吃不下那么多苹果，却能轻松喝下一杯汁——果汁的危险在于糖太容易过量。纤维的作用是减缓糖的吸收速度，所以吃甜食最好带着纤维一起吃，别指望自己榨汁能解决问题。
beloch查看英文原文
"Juice removed from the fruit is just concentrated fructose without any of the naturally-occurring fiber, pectin, and other goodies that make eating a whole fruit good for you. Did you know, for example, that it takes 6-8 medium sized apples to make just 1 cup of apple juice? You probably wouldn’t be able to eat 6-8 medium apples in a single sitting. (I know I can barely eat one!) But you can casually throw back a cup of apple juice, and you would probably be willing to return for seconds. That’s why fruit juice is dangerous. It’s far too easy to consume far too much sugar." This paragraph is, arguably, far more important than all the hysteria about flavor packs, but it's only partially correct. Fibre does help provide satiety but, in and of itself, it isn't what's good for you about eating whole fruit unless you simply aren't getting enough fibre and have issues with constipation. What fibre does do is reduce the rate at which we absorb sugar. Apple juice will give you a nice fast sugar high and then a low, much like candy. An apple will give you a gradual surge of energy for a while. If you're going to eat something sweet, it's far better for you if it comes combined with fibre. So don't go searching for juice that doesn't use flavor packs. Don't buy a juicer and juice your own either, because you're still throwing away what separates fruit from candy. Don't mess around with fermenting juices and all that probiotic jazz. If you simply must drink your fruit, use a blender.
文章核心论断缺乏证据，'香精包'更可能是标准化口味而非造假。
我觉得难以置信：公司为什么要花钱给本来就有味道的东西加化学物质？文章最关键的说法——无氧储存让橙汁失去风味——并没有给出证据，我追溯来源发现都是互相引用，最终指向一本书《Squeezed》。有机橙汁的说明显示'香精包'是用橙皮和橙油来统一口味，而非凭空创造味道，这合理得多，也没什么好恐慌的。
sparkzilla查看英文原文
On its face, I find this difficult to believe because why would any company pay to add massive amounts of chemicals to something to give it a taste that it has naturally? The most important point in the article is that storage in the oxygen-less tanks deprives the juice of its flavor. No proof is provided of this assertion. When I follow the source link I get a similar article [1] that then is sourced to a similar one [2], neither of which has and proof, other than the author's assertion. So I tried to track down the original. I found this article [3] which links the original expose to Dr. Oz (whatever) and to a book, Squeezed: What you don’t know about Orange Juice, and an interview with the author [4], where she asserts that the stored orange juice is flavorless, but we don't know if that's really true or not. Did she taste it? Reading the organic juice's page it seems clear that any 'flavor packs', which are made from orange peel and oils, are added to standardize the taste, rather than creating the taste, which seems to be a far more reasonable suggestion, but hardly something to feel alarm about. [1] https://christinescottcheng.wordpress.com/2010/05/19/tropicana-orange-juice-flavor-packs-and-food-industry-lies/ [2] http://civileats.com/2009/05/06/freshly-squeezed-the-truth-about-orange-juice-in-boxes/ [3]http://unclematts.com/resources/flavor-packet-faqs/ [4]http://www.boston.com/bostonglobe/ideas/articles/2009/02/22/qa_with_alissa_hamilton/?page=full
原作者本意是揭示生产透明度问题，文章把结论歪曲成了健康恐慌。
我认为这篇文章'别喝超市橙汁'的健康结论站不住脚。文中所有来源都追溯到 Alissa Hamilton 的书《Squeezed》，而她在采访中明确表示这本书不是讨论橙汁是否健康，而是关于消费者对食品生产过程知之甚少。
martey查看英文原文
I don't think that the health conclusions of this piece (don't drink orange juice from the supermarket!) are warranted. All the sources listed in it lead back to Alissa Hamilton's book "Squeezed." While not having read it, all of the information I can find suggest that Hamilton is not trying to suggest that orange juice is unhealthy. For example, this interview in the Boston Globe - http://articles.boston.com/2009-02-22/bostonglobe/29257797_1_orange-juice-vitamin-minute-maid : You'd be better off with a whole orange than a glass of orange juice. It has more fiber and more vitamin C. But I'm not a dietitian. The book is not about whether you should drink orange juice and whether it's healthy. It's about how little consumers know about how popular and - in the case of orange juice - seemingly straightforward foods are produced and the repercussions for agriculture.
橙汁和可乐一样本质是高糖饮料，香精包不是健康问题的重点。
秘密成分？就是糖水。这就像讨论可乐里加了什么化学物质——是，它们在里面，也许不该加，但那不是你喝它的原因，也不是它对你不好的原因。10盎司可乐含糖33克，10盎司纯果乐橙汁含糖28.1克。
Cushman查看英文原文
Secret ingredient? It's sugar water. This is like talking about the chemicals they put into Coke... Yeah, they're in there, and maybe they shouldn't be, but that's not why you drink it and that's not why it's bad for you. Edit: Downvote why? Sugars in 10oz Coca-Cola classic: 33g. Sugars in 10oz Tropicana Pure Premium original orange juice: 28.1g. [1] http://caloriecount.about.com/calories-coca-cola-classic-i98047 [2] http://caloriecount.about.com/calories-tropicana-orange-juice-original-i115273
历次讨论
同类还值得读
如果月球只有 1 像素：一个极其精确的太阳系模型（2014）
If the moon were only 1 pixel: A tediously accurate solar system model (2014)
一个网页版太阳系模型，以“如果月亮只有 1 像素”的真实比例呈现：你必须一路横向滚动，才能体会行星之间空旷到何等程度。
科学与数学上首页 7 次 · 2014–2025joshworth.com编辑精选沉浸式线性代数（2016）
Immersive Linear Algebra (2016)
《Immersive Linear Algebra》是一本完全免费、开放在线的线性代数“超文本教科书”，其最大特色是大量可交互的图形：读者可以直接拖动、操作图中的向量、矩阵和变换…
科学与数学上首页 5 次 · 2015–2024immersivemath.com编辑精选如何将贝果切成两个相连的半环（2009）
How to Slice a Bagel into Two Linked Halves (2009)
数学家 George Hart 的经典教程，演示如何用一刀把贝果切成两个相互扣住的环，并附上切割步骤与数学原理。
科学与数学上首页 5 次 · 2009–2022georgehart.com“犹太问题”：一组用于歧视的数学题
Jewish problems
一篇 arXiv 论文，整理并讨论苏联时期犹太学生在申请大学数学系时被问到的特殊数学难题：这些题往往有简单解法却极难想到，被用作面试中拒绝犹太考生的手段。
科学与数学上首页 5 次 · 2011–2021arxiv.org你的身体并非为长久而造：人类死亡率数据的一课
Your body wasn’t built to last: a lesson from human mortality rates
文章从人类死亡率随年龄变化的统计规律出发，解释身体并非为长久使用而设计：年轻时死亡风险较低，之后随年龄近似指数上升，像复杂系统在不断累积损伤。
科学与数学上首页 5 次 · 2009–2018gravityandlevity.wordpress.com