Presentday Cultivation And Usage

Today, brassica plants are widely grown as a vegetable food or oil source. Spain, France, and China were the top three exporters of cauliflower and broccoli in 2006, together producing more than half a million tonnes of the vegetables (ERS, 2009). In the 1980s the potential human health benefits of glucosinolates was realized, with studies demonstrating the brassicas to be an excellent source of these phytochemicals. Since then broccoli seed has become important as a source of sprouts for direct human consumption, and as a source of glucosi-nolates to add to other nutritional products.

Glucosinolate content in broccoli seed

Compared to leaf and inflorescence tissues, broccoli seed has an exceptionally high content of glucosinolates and glucoraphanin in particular, with levels of glucoraphanin of up to 105 mmol/g fresh weight in some cultivars. Broccoli seeds are the best source of glucoraphanin,

TABLE 30.1 Glucosinolate Profile of Broccoli cv "Marathon" Seeds (after West et al., 2004)

Glucosinolate

Mean Content (mmol/g)

% Content

Glucoraphanin

59.81

46.9

Glucoiberin

26.40

20.7

Glucoerucin

21.31

16.7

4OH-Glucobrassicin

15.10

11.8

Glucoibervirin

4.84

3.9

Broccoli seed is particularly high in glucosinolates, with glucoraphanin (precursor to sulforaphane) the most abundant.

Broccoli seed is particularly high in glucosinolates, with glucoraphanin (precursor to sulforaphane) the most abundant.

but there is considerable variation amongst cultivars (West et al., 2004). A typical broccoli seed glucosinolate profile is shown in Table 30.1.

Was this article helpful?

0 0
Health And Fitness 101

Health And Fitness 101

Self-improvement is a thing which you must practice throughout your life because once you started to believe that you are perfect then, things will start to become complex. You need to know that no one is perfect and no one can be perfect.

Get My Free Ebook


Post a comment