. 2017 Jun 2;26(2):232–237. doi: 10.1016/j.sjbs.2017.06.003

Table 2.

Amino acids composition (mg/g DM) of bee-pollens.

Amino acid	Alfalfa	Date palm	Summer squash	Sunflower	Rape	Average
Essential amino acids
Arginine	3.14^c	4.20^a	2.87^d	3.89^b	3.91^b	3.60
Histidine	3.46^d	3.20^e	6.28^a	6.07^b	3.98^c	4.60
Isoleucine	7.20^a	6.53^c	5.81^b	4.62^e	6.00^d	6.04
Leucine	12.90^a	12.14^b	11.70^c	9.65^e	10.87^d	11.45
Lysine	6.37^c	8.91^a	7.67^b	7.57^b	7.67^b	7.64
Methionine	0.44^c	0.36^d	0.71^a	0.36^d	0.50^b	0.47
Phenylalanine	3.06^a	3.02^b	2.57^c	1.16^d	3.02^a	2.55
Threonine	4.74^c	4.84^b	4.00^e	5.18^a	4.38^d	4.63
Tryptophan	1.19^a	1.21^a	1.03^b	0.50^c	1.18^a	1.02
Valine	9.95^a	9.11^c	8.58^d	8.29^e	9.64^b	9.11

Non-essential amino acids
Alanine	12.72^a	11.92^c	13.49^b	11.30^d	12.12^c	12.31
Aspartic acid	16.44^a	14.16^b	16.08^b	16.00^c	16.46^a	15.83
Cysteine	1.79^b	2.42^a	1.20^c	1.22^c	1.15^d	1.56
Glutamic acid	16.18^d	17.81^b	13.24^e	18.40^a	16.73^c	16.47
Glycine	15.02^d	14.70^e	17.64^a	16.60^b	15.84^c	15.96
Proline	0.68^a	0.31^e	0.56^c	0.65^b	0.49^d	0.54
Serine	7.63^b	7.01^d	7.62^b	8.86^a	7.10^c	7.64
Tyrosine	2.21^b	2.93^a	1.55^d	1.61^c	1.34^e	1.93

Means of each row followed by the different letter are significantly different at the 0.01 level.