£4.80 – £48.45
This mix is a combination of 2 different types of Broccoli seed, 50% Raab and 50% Calabrese. Broccoli sprouts contain a host of beneficial nutrients and antioxidants. One cup of sprouts contains double the amount of fibre as regular broccoli and 60% of your daily intake of immune-boosting Vitamin C. Broccoli sprouts contain approximately 50 times the amount of nutrients as the vegetable.
All of the brassica family contain beneficial glucosinolates, sulfur-containing plant compounds that have many beneficial qualities for health, and are generally very rich sources of antioxidants and carotenoids. Broccoli Raab, however, does not contain high levels of glucoraphanin, which is converted to sulforaphane.
Broccoli Calabrese seed is an excellent quality seed and produces a wonderfully large, juicy and peppery tasting sprout, with a good yield. Broccoli Calabrese has been shown to contain high levels of glucoraphanin, the precursor to sulforaphane. If you are looking to increase your sulforaphane consumption, this is the seed to buy.
Broccoli Calabrese has been shown to contain 100 times as much glucoraphanin as vegetable broccoli. Broccoli sprouts are the richest source of naturally-occurring sulforaphane currently known to science.
This is a more economical way to get the benefits of broccoli sprouts, as Raab is a less costly seed than Calabrese. However, if you are specifically trying to grow sprouts for sulforaphane, you may like to try our Broccoli Calabrese seed (found here) or our freeze-dried sprouts.
10g of seed will produce approximately 100g of sprouts in 4 – 5 days. *Sulforaphane levels have been shown to peak at 3 days, so it best to harvest sprouts at 3 days old.
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Have a question?
How much glucoraphanin and sulforaphane is in sprouts from 10 g of calabrese seeds?
This is a great question!
Measuring precise levels of glucoraphanin, a glucosinolate that is the precursor to sulforaphane is a complex science. Levels of glucoraphanin can be highly variable in broccoli seed and sprouts and this is dependent on many factors. Studies have concluded that broccoli sprouts generally contain 10 to 100 times more glucoraphanin than broccoli florets (the mature plant), and that the seeds are the richest source of this compound. The seeds need to be sprouted to be edible, as this process gets rid of the enzyme inhibitors present in seeds.
The current most useful data that we have on sulforaphane dosage levels are from clinical trials that have been carried out. These suggest that 1 gram of fresh sprouts has about 0.425mg of sulforaphane. 10g of Calabrese seed will produce about 100g of fresh sprouts. This would be about one jar worth of broccoli sprouts, or a little more in our new GEO sprouters.
As research pointed out by Dr Rhonda Patrick (https://www.youtube.com/watch?v=zz4YVJ4aRfg&feature=youtu.be) suggests:
60mg sulforaphane is comparable to 140g fresh broccoli sprouts. Study of this level of consumption showed sulforaphane slowed the doubling rate of a cancer biomarker (known as prostate specific antigen or PSA) by 86%.
40mg sulforaphane is comparable to fresh broccoli sprouts. Study of this level of consumption lowered serum triglycerides by 18% and lower oxidized LDL ratio by 13%. Overall, this reduced the trial participants’ atherogenic index by 50%. Study showed sulforaphane reduced inflammation in type 2 diabetics: TNF-alpha by 11%, CRP by 16%.
This research would suggest that you should aim for somewhere between 40mg & 60mg sulforaphane, so 100g to 140g fresh sprouts, or one sprouter jars worth, eaten a few times a week.
I hope this info helps, let us know if you have any more queries 🙂
Please can you tell me why you are not providing 100% Calabrese seeds
Thanks for your message. We do sell 100 % Calabrese seeds, here is the link http://skysprouts.co.uk/product/organic-broccoli-calabrese/
We have found through the years of sprouting that 50/50 makes for a lovely fluffy sprout, not all customers want 100 % Calabrese as it is a lot more expensive seed and Broccoli Raab has lots of great health benefits too!