The invention relates to lemon essence for water-based ink. The lemon essence is prepared from, by weight, 1%-30% of lemon essence, 5%-55% of compound modification
oligosaccharide and deionized water. The lemon essence is composed of
lemon oil,
litsea cubeba oil,
citral diethyl
acetal, myrac
aldehyde, bergamot
aldehyde, lemonile, decanal, caprylic
aldehyde, dodecanenitrile, citonellye
nitrile, ethyl methylphenylglycidate,
linalyl acetate,
linalool, lilial,
benzyl acetate,
cyclamen aldehyde, terpilenol,
terpinyl acetate, anisic aldehyde, verdyl acetate,
geraniol,
geranyl acetate,
citronellol, citronellyl acetate, isocyclocitral, styralyl acetate,
isoeugenol,
ionone, heliotropin, iso-longitolanone, HHCB and ethyl
alcohol. The invention further provides a preparation method of the lemon essence for the water-based ink. According to the lemon essence for the water-based ink and the preparation method of the lemon essence, the compound modification
oligosaccharide is used as a
wall material, the lemon essence is wrapped so that lemon nanocapsule slow-release essence can be formed, and therefore fragrance depositing and water
solubility of the essence are improved.