Profiles of Sugar and Organic Acid of Fruit Juices: A Comparative Study and Implication for Authentication

Table 4

Discrimination effect of adulterate samples by LDA with sugar and organic acid content.

Fruit juice	Adulterate	Discrimination effect
Sweet cherry	With 20%, 40%, 60%, and 80% of apple juice	All
	With 20%, 40%, 60%, and 80% of pear juice	All
	With 20%, 40%, 60%, and 80% of peach juice	All
Blueberry	With 20%, 40%, 60%, and 80% of apple juice	All
	With 20%, 40%, 60%, and 80% of pear juice	All
	With 20%, 40%, 60%, and 80% of peach juice	All
Raspberry	With 20%, 40%, 60%, and 80% of apple juice	All
	With 20%, 40%, 60%, and 80% of pear juice	All
	With 20%, 40%, 60%, and 80% of peach juice	All
Grape	With 20%, 40%, 60%, and 80% of apple juice	Except for adulterate with 20% of apple juice
	With 20%, 40%, 60%, and 80% of pear juice	Except for adulterate with 20% of pear juice
	With 20%, 40%, 60%, and 80% of peach juice	All