NURSING EXAM QUESTIONS
PHARMACOGNOSY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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citric acid
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lactic acid
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malic acid
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tartaric acid
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Detailed explanation-1: -Malic acid was first isolated from apple juice by Carl Wilhelm Scheele in 1785. Antoine Lavoisier in 1787 proposed the name acide malique, which is derived from the Latin word for apple, mālum-as is its genus name Malus.
Detailed explanation-2: -Malic acid was first described by Sheele who, in 1785, isolated this acid from unripe apples. The name malic is from the Latin for apple, malum. Malic acid is found in other fruits such as grapes, watermelons, cherries, and in vegetables such as carrots and broccoli.
Detailed explanation-3: -In cultivated apple, malic acid is the predominantly detectable organic acid, while malic acid and citric acid are the predominant organic acids in wild apple species.
Detailed explanation-4: -Malic acid is an organic compound with the molecular formula C4H6O5.