NATURE WINE

Volatile acid - ֹ߻(ʻ) ۼ: 15-12-07  
: Volatile acid - ֹ߻(ʻ)
ۼ: NATURE WINE

⿡ Ŀٶ ϴ ֹ߻ (ʻ) Դϴ. Ȥ ߰ ֽϴ. ' ߴ, ȭǾ' ǥϴµ ̷ Ͼ ۼ ҽϴ.

 

 

 


Volatile acid - ֹ߻(ʻ) ڸ 

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ο ϴ ǥ (Acid) δ ּ (tartaric acid), (malic acid), (latic acid), ʻ (acetic acid), ȣڻ (succinic acid) , ̷ (citric acid) Ƿ (pyruvic acid) ֽϴ. ο ֹ߻ κ ʻ ع̷ ֹ߻δ (formic), ǿ» (propionic) ׸ Ƽ (butyric acids) ֽϴ. ü Ÿ ϴ ְ ִ ݸ  Կ û Ÿ λ ׷, ̴ ο ־ ̰ ϰ ε巯 ˴ϴ.

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ο ϴ ǥ (Acid) δ ּ (tartaric acid), (malic acid), (latic acid), ʻ (acetic acid), ȣڻ (succinic acid) , ̷ (citric acid) Ƿ (pyruvic acid) ֽϴ. ο ֹ߻ κ ʻ ع̷ ֹ߻δ (formic), ǿ» (propionic) ׸ Ƽ (butyric acids) ֽϴ. ü Ÿ ϴ ְ ִ ݸ  Կ û Ÿ λ ׷, ̴ ο ־ ̰ ϰ ε巯 ˴ϴ.​

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ο (acid) ֹ߻ (volatile acid) (fixed acid) з , ַ ֹ߻ 󵵰 ο ġ ޵DZ⵵ մϴ. ֹ߻ 󵵰 ⿡ ̹ϴ ڿ ȭ ֹ߻ DZ⵵ ϸ ַ ʻ (ʻ ׸)κ ū ޽ϴ. 

⺻ ֹ߻ ȭн Ÿ CH3CH2OH (ź) + O2 () CH3COOH (ʻ) + H2O () ֽϴ. ׸ƴ ȣ⼺ ҿ ˿ ϹǷ, ׸ ߻ ɼ ּȭϴ° ٶϸ, ҿ ִ ϴ ϴ. , ʻ ϰ ְ Ұ ϹǷ Ƿ ּȭϱ ùٸ 䱸˴ϴ. κ ̳ʸ ׸ Ÿ ͸ 踦 ϰ , ҿ ̻ȭźҸ Ͽ ΰ ũκ Ҹ ܺη 踦 ϸ Ȳ ʻ ֽϴ. ġ £ ʻ Ϻδ ʻ꿡ƿ ν ⿡ ġµ, ַ ⺸ٴ Ƽ Ȥ Ʈ Ǵ ȭоǰ (ڸ µ) Ÿ ˴ϴ.

, ó ʰ , Ⱓ ڿð Ͽ ȭչ ϰ ǹǷ ֹ߼ ε巯 ˴ϴ. ʻ ź κ Ǵ ȭн CH3CO OH (ʻ) + H OCH2CH3 (ź) => CH3COOCH2CH3 (ʻ꿡ƿ) + H2O () ǥ ֽϴ.

ο ֹ߻ 󵵴 0.2g/L - 0.5g/L̸, ǰ ̿ ġ⿡ ġԴϴ. ݴ, Ʈտ Ȥ ƮƼ , ֹ߻ 󵵴 Ϲ κ ġ Ÿ, ׸ Ȥ ĶϾ 濡 Ȯ 1.0 - 2.0g/L ġ Ÿϴ. 1.0 - 1.2g/L ֹ߻ 󵵴 ġ⿡ ġ ֽϴ.

ֹ߻(ʻ) Ѱġ 캸, , ʹ 1.2g/L̸, ȭƮ 1.08g/L, ̱ ̺ 1.2g/L, ȭƮ 1.1g/LԴϴ. ߿ ʻ źð Ͽ ֹ߻ Ƿ ġ Ͽ ֽϴ. ( , õ Ƽ , ϸ鼭 ε巯 ɰ ƴ ڸ  ʿ ޴ , Ȥ ϰ ĥ ٽ ÷ ܿ µ ϰ ִµ Դϴ.)  , ٽ ׸ Ȱ ȰǷ ֹ߻ 󵵰 £ Ÿ⵵ մϴ. ȭƮ Ȥ ׸ Ǵ ֹ߻꿡 ذ , 0.5g/L ֹ߻ ǰ 0.7g/L ġ Ÿϴ.

ֹ߻ ϱ ؼ ġ Ȯϰ ˾ƾ ʿ䰡 ֽϴ. ֹ߻, ޸ ״ ֹ ϹǷ ο ν ٸ κ и մϴ. Ϲ ġ , (Total acid) ġ ֹ߻ (volatile acid) ġ մϴ. ֹ߻ ġ ̹ ϸ, ڵ ⱸκ pH 󵵸 ֹ߻ Ư ⱸ (Markham still) ؾ մϴ.

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Reference (ó)
University of Brighton
Plumpton Wine Analysis
WSC (Wine Science Centre)

Copyrights Nature Wine(www.naturewine.com)

 

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