# [8 i& i6 k, X1 \! D& n' dGlucono delta-lactone (GDL) is a product sourced from plant-based raw materials, found naturally in honey and grapes, for example. After the dehydration of gluconic acid (elimination of a water molecule), we obtain glucono delta-lactone. Roquette expertise guarantees a very pure crystallised GDL (several particle sizes available).& }3 c1 ]' f* ]8 R% M
Highly soluble in water, GDL is progressively hydrolysed into gluconic acid, resulting in a regular fall in the pH. It can thus be considered a progressive acidifying agent.9 \( s7 j9 H0 v9 {7 H# s1 Q/ i
The acidifying character of GDL gives it interesting functionalities as a raising agent; GDL also helps to reduce salt content and even improve the conservation of foodstuffs. The neutral flavour of GDL is also a property looked for in this product. - J8 @6 }% D. k: Z1 |! tGDL is one of the many functional solutions that the Group offers to the food processing industry and, more specifically, in the cheese making, bakery and culinary products sectors. + z* D! y7 j8 ~" e8 B: U) G% k, G* U& Z% }3 E" Z# V) _ 葡萄糖酸內脂（GDL）是以植物為主原料製成的產品，蜂蜜、葡萄等食物皆含有此成分。我們將葡萄糖酸脫水（脫除一水分子）之後，便可取得葡萄糖酸內脂。Roquette的專業技術能生產純度極高的GDL結晶（供應數種大小的顆粒）。由於水溶性高，GDL會逐漸水解成葡萄糖酸，穩定地降低酸鹼值，因此可被視為一種漸進性的酸化劑。GDL的酸化性質使它具備膨鬆劑的妙用；GDL也有助於降低鹽類含量，甚至增進食品保存。無臭也是GDL產品廣為利用的特性。GDL是本集團提供食品加工業的多種功能性添加劑之一，特別是乳酪製造、烘焙及烹飪產品領域。8 ?6 x4 K+ t/ M# Z
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原文出處:http://www.roquette.com/organic-acids-organic-acid-salts/, j! h" n8 T* P, @
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目前的產品標示如附件二' q& _8 b' @9 u% |* {- R
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天然原料，絕無添加防腐劑，請盡早食用完畢，冷藏後表面出水情形，屬正常現象，請安心食用 , L$ [5 b$ D2 B7 }" x% P/ s' g+ l1 K( v2 F5 t& q
請問葡萄糖酸-內酯是否可歸類為天然原料？在最後一行標示天然原料是否合宜？是否會有標示不實的問題發生？或有其他建議？ / }- r6 u9 f7 j" i' h" I, z4 I3 Y1 I" W/ W% Z8 Q, r0 I
懇請釋疑,謝謝!: h R6 M- D1 {3 x j1 G
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