Physicochemical Contents, Antioxidant Activities, and Acute Toxicity Assessment of Selenium-Enriched Chinese Kale (Brassica oleracea var. alboglabra L.) Seedlings

Table 1

Physicochemical contents, total selenium, and Se bioaccessibility of air-dried substance of regular Chinese kale seedlings (R-KS) and Se-enriched Chinese kale seedlings (Se-KS).

Constituents	R-KS	Se-KS
Moisture (%)	4.8 ± 0.1	4.9 ± 0.1
Crude protein (%)	33 ± 2^a	37 ± 1^b
Crude fat (%)	3.6 ± 0.4	3.4 ± 0.2
Crude fibre (%)	5.5 ± 1^a	7.1 ± 1^b
Ash (%)	22.7 ± 0.4^a	15.5 ± 0.1^b
Carbohydrate (%)	30.7 ± 0.9	32.3 ± 0.5
Total selenium before GI digestion (mg/kg)	17 ± 3^a	433 ± 22^b
Total selenium after GI digestion (mg/kg)	4 ± 2^a	219 ± 1^b
Se bioaccessibility (%)	20 ± 6^a	50 ± 0^b

The data are expressed as mean ± SD (); identical superscripts in row denote no significant () difference between mean values according to the independent t-test (SPSS 16.0).