Bayer. Landesanstalt für Landwirtschaft
Institut für Pflanzenbau und Pflanzenzüchtung
The ingredients of hops
water
chlorophyll
sugars
cellulose
amino acids
proteins
salts
pectins
essential oils
bitter substances
• conductometric titration
titration (EBC 7.4, 7.5)
• HPLC (EBC 7.7)
• NIR-spectroscopy
polyphenols
• steam distillation,
• gaschromatographymass spectrometry, (300400 single compounds)
• spectral photometry (total polyphenols, flavonoids)
• HPLC (single compounds)
Klaus Kammhuber IPZ 5d

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