1. Thank you to readers of this blog who find the 650+ curations and other posts worth their time. I reread blog posts after you read them, and sometimes improve them for our mutual benefit.
One such post this week was Broccoli sprout compounds include sinapic acid derivatives. Although it was already fairly detailed, it received a half-dozen improvements.
- Those researchers measured composition changes of 31 compounds (18 sinapic acid derivatives, 8 glucosinolates, and 5 flavonoids) identified in seed-2-4-6-day germination stages of one cultivar. They provided convertible dry weight and fresh weight measurements in mg / g.
- It complemented the 3-day-old broccoli sprouts have the optimal yields study comparisons of six cultivated varieties’ seed-3-5-7-day germination stage weights and measurements with their origins using a milligram-per-gram-of-seeds scale:
“To be comparable, the content of these bioactive compounds from 100 fresh sprouts was divided by the weight (g) of 100 seeds, and then this value was compared with their content from one gram seeds.”
- The sinapic acid study discussed another study for:
“In a study, diminishing amounts of total phenolic acids in sprouts of three broccoli cultivars was observed only between 3rd and 7th day of germination under photoperiod conditions and only when expressed on fresh weight basis. After recalculating results to dry weight, amounts were increasing during the whole 14-day observation period.”
2. Speaking of which, I viewed a 1:48 video with broccoli sprout experts who disparaged microwaving around the 1:10 mark. I’m not an expert, but I’ve eaten a clinically-relevant dose of microwaved broccoli sprouts every day for 34 weeks now.
Here are a few studies of microwaving’s effects on phenolic, glucosinolate, and flavonoid broccoli compounds. Just for those who value evidence more than opinion.
- Microwaving broccoli sprouts may not affect phenolic levels found four of five test cases didn’t significantly diminish total phenolic fresh weight contents of whole broccoli. They blended 100 grams broccoli in 200 ml water, halved the purée, then microwaved half on 700W power for 30 seconds. No disclosure of what temperature was achieved, but it was probably < 60°C (140°F). Microwaving significantly increased the glucosinolate hydrolysis product indole-3-carbinol:
- Microwave broccoli to increase flavonoid levels study design was “Broccoli florets (150 g) were put in a microwave safe bowl with a 1 tablespoon [15 ml] of water” and a 1200W microwave on full power for one minute. Although this may have produced temperatures > 60°C, flavonoid fresh weight contents increased > 30%:
“Microwaving may increase extractability and/or release from binding to other compounds as a result of matrix softening.“
- Microwave broccoli to increase sulforaphane levels demonstrated significant differences for 475W (LL) and 950W (HL) power settings in glucoraphanin and sulforaphane dry weight amounts when broccoli florets were microwaved to the same temperatures. Compare white bar sulforaphane amounts for LL60 and HL60 (both 60°C), annotated as E and F:
- Enhancing sulforaphane content confirmed the above 60°C finding with broccoli florets:
“The best treatment temperature for maximizing sulforaphane yield was 60 °C. The slightly higher sulforaphane yield than would be predicted from the level of glucoraphanin in raw broccoli requires further investigation. Sulforaphane yield of broccoli after 5 min thermal treatment at 65 °C was even lower than the value obtained for raw broccoli.“
3. I see socialistic animal behavior often during beach walks. If one seagull pecks a food morsel, a half-dozen others immediately position themselves to take it. It’s a race to the bottom of existence.
Too bad we humans don’t learn pertinent lessons from others’ experiences, much less our own. Today’s US Thanksgiving provides one example.
Richard Ebeling presented the factual Thanksgiving story a while back. Have you read about collectivism that arrived with the Mayflower in 1620? Do you think we’ve learned what we needed to learn about communism from four centuries ago through today?
4. Seagulls are also inspirational in their flock behavior of joie de vivre predawn flying.