Chemical and Biological Technologies in Agriculture

Table 2 FT-IR spectra of CAF8

From: Inhibition of pathogen and induction of resistance against early blight: Alternaria solani Sorauer in tomato plants (Solanum lycopersicum L.) through external application of compounds from seaweed Chaetomorpha antennina Bory

	Absorption (cm⁻¹)	Appearance	Group	Compound class
1	723.97	Strong	C=C bending	Alkene
2	1164.17	Strong	C–O	Ester
3	1376.85	Medium	O–H bending	Phenol
4	1456.82	Medium	C–H bending	Alkane
5	1708.59	Strong	C=O stretching	Aliphatic ketone
6	2852.94	Medium	C–H stretching	Alkane
7	2921.78	Medium	C–H stretching	Alkane

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