BROCCOLI
COMMON NAME : Broccoli
LATIN NAME : Brassica oleracea Botrytis cymosa
(Broccoli) Brassica oleracea var. acephala (Kale), Raphanus sativus
(Radish)
DESCRIPTION : Broccoli (Brassica oleracea
Botrytis cymosa) is a dark green vegetable in the cruciferous family. It
is rich in fiber, provitamin A carotenoids, vitamin C and vitamin K.Fresh
broccoli is available throughout the year, with the peak season from
January through March. This is a cruciferous vegetable extract,
standardized for sulforaphane.
PHYSIOLOGY : Cruciferous vegetables apparently
can reduce the risk of cancer by inducing extra protection of the enzymes
involved in detoxifying carcinogens and flushing them out of the body. The
phase II enzymes, including quinone reductase and glutathione S-tranferase,
are particularly active. Sulforaphane is a major and very potent phase II
enzyme inducer. Sulforaphane, along with other cancer-protective
isothiocyanates, does not induce damaging phase I enzymes. Besides
protecting against the risk of cancer occuring, sulforaphane appears to
reduce the severity of cancers that do occur. Estrogen is formed from
estradiol, and can take either a safe, relatively inert form,
2-hydroxylated, or a dangerously reactive form that has been associated
with breast cancers and increased risk of breast cancer, 16-hydroxylated
estrogen. Indoles, particularly indole-3-carbinol, induce protection of
the safe, rather than the dangerously reactive, form of estrogen.
2-hydroxylated estrogen is also induced by vigorous exercise (at least 2,
and preferably 4 hours per week), and a major study released in September
1994 showed a strong correlation with reduced cancer risk. Broccoli may
have other antioxidant activities due to its carotenoid, phenolic and
anthocyanin constituents.
ACTIVE PROPERTIES: Key nutritional constituents
are fiber, provitamin A carotenoids, vitamin C and vitamin K.
Isothiocyanates are a class of compounds recently identified at Johns
Hopkins University as being one key to the anticancer properties of
cruciferous vegetables. The most active isothiocyanate is sulfor-aphane.
Fresh, commercial broccoli has widely varying amounts of isothiocyanates
and sulforaphane, depending on the plant strain, growing methods and time
of harvesting. Also, the absorption and utilization of these compounds can
be hampered by poor preparation or digestion. Therefore, extracts of
broccoli and other cruciferous vegetables that concentrate isothiocyanates
and sulforaphane by factors of from 133:1 to 400:1 have been developed, to
provide enhanced protection. Indoles are another key to anticancer
activity. Dr. H. Leon Bradlow of the Strang-Cornell Cancer Research
Laboratory in New York has isolated a crucial one, indole-3-carbinol, from
broccoli.
HISTORICAL USES: • Broccoli helps prevent
stomach and colon cancer, as do other members of the cruciferous family.
• It is also a good dietary source of fiber, provitamin A carotenoids,
vitamin C and vitamin K.
DIRECTIONS FOR USE : 250 mg of a 400:1 extract at
0.04% mg / g sulforaphane is equivalent to one serving (100 grams) of
fresh commercial broccoli
TOXICITY, CAUTIONS & CONTRAINDICATIONS: No
known toxicity.
