Preliminary Studies of Chemical and Physical Properties of Two Varieties of Avocado Seeds Grown in Chile

Table 2

Profile of fatty acids expressed as methyl esters (%) and content of tocols and carotenoids present in the waste seed of avocado SH and SNC varieties.

Fatty acids (%)	SH (a)	SNC
Saturated
C14 : 0	1.01 ± 0.00	—
C16 : 0	18.40 ± 2.80	22.43 ± 2.60
C17 : 0	—	2.20 ± 0.04
C18 : 0	1.70 ± 0.03^a	3.28 ± 0.00^b
Total	20.11^a	27.91^b
Monounsaturated
C16 : 1 ω7	3.50 ± 0.04^a	6.77 ± 0.50^b
C18 : 1 ω9	41.38 ± 0.50^a	28.27 ± 0.60^b
Total	44.88	35.04
Polyunsaturated
C18 : 2 ω6	28.94 ± 2.03^a	33.58 ± 0.90^b
C18 : 3 ω3	5.02 ± 0.05^a	3.42 ± 0.01^b
Total	33.96	37.00
Ω6/ω3	5.8	9.8
Tocols (mg·kg ^−1 oil)
α-Tocopherol	425.66 ± 21.39^a	1228.31 ± 68.56^b
β-Tocopherol	8.27 ± 1.24	8.97 ± 1.77
γ-Tocopherol	2.33 ± 0.59	—
δ-Tocopherol	24.89 ± 7.88^a	73.12 ± 11.02^b
α-Tocotrienol	90.02 ± 9.55^a	1948.02 ± 55.31^b
δ-Tocotrienol	—	49.62 ± 6.79
Total	551.24	3308.03
Carotenoids (mg·kg ^−1 oil)
β-Carotene	111.88 ± 24.66^a	54,13 ± 7.89^b
Lutein	131.51 ± 16.87^a	59.88 ± 8.56^b
Total	243.39	114.01

Data are expressed as the mean ± standard deviation (n 4). Different letters indicate significant differences () between samples. Samples without significant differences are not indicated by letters. SH avocado seed 9 Hass variety (a, preliminary unpublished laboratory studies, 2016 season); SNC avocado seed Negra de la Cruz variety.