by marianne.gutierrez on April 17, 2012
I thought you might like to see the photographs of the petri dishes with the organic cold pressed grapefruit seed extract and the colonies of bacteria, fungi and yeasts that grew.
Please note that the grapefruit seed extract used was organic and cold-pressed and did not contain any chemicals or proprietary blends.
However before I do that let me explain something. When a product is tested for its disinfectant properties a petri dish is made with a substance generally sea weed (agar). The disinfectant, anti-microbial product is put in the centre of the dish where infected material has been zig-zagged completely across the whole plate or dish. Then it is left for the bacteria and infectious material to grow.
The infected material must not grow anywhere around the disinfectant. There should be a clear halo around the whole area, not even a light growth.
Here is the lab report with images:
“All plates used were ISO agar, which is a neutral agar used for general sensitivities. The plates were seeded with a light innoculum of (1)Staphylococcus aureus, (2)Escherichia coli (E.coli) and (3) Left: Aspergillus spp. (mould) Right: Candida spp (yeast). A small well was then bored into the agar and the neat grapefruit seed extract was poured into the well. The plates were then incubated at 37 C (Staph and E. coli) and 22 C for the yeast and mould for 24hrs and 5 days respectively.”
Image 1

Image 1 – This shows heavy growth of Staph aureus. There is a slight zone of very light growth around the grapefruit seed extract, then a further zone which shows a very little resistance to the bug.
Image 2
Image 2 – This shows heavy growth of E. coli. There is a slight zone of very light growth around the grapefruit seed extract, then a further zone which again, shows a very little resistance to the bug. There is a small black possible colony? which may be contamination of the plate previous to innoculation. This is not important in this experiment.
Image 3
Image 3 – These plates have very heavy growth of Mould (L) and Yeast (R). Which shows little or no resistance from the grapefruit seed extract.
This experiment shows that grapefruit seed extract on its own does not contain any microbial properties.
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by marianne.gutierrez on December 31, 2011
The Tone and Stretch KEEP FIT class starts again on Monday 9th January and Friday 13th January at Blackborough Village Hall. Come and join us!
Tone and Stretch KEEP FIT Class
Why should we all be taking part in KEEP FIT classes?
Three reasons:
1. Stretching helps the immune system to work better aiding the body’s resistance to colds and virus’.
2. Using weights to induce resistance encourages the body to keep calcium in the bones to help avoid conditions such as osteoporosis.
3. Arthritis is also helped by Toning and Stretching and stretching has been an essential part of my getting well from CFS/ME an illness, which can be said to be on the arthritis spectrum.
Three good reasons to come to this class!
The class is gentle and easy to do and we have a laugh – always good medicine!
Come and meet us and come and KEEP FIT.
Classes will be held during term time Mondays and Fridays at 10:30 at Blackborough Village Hall.
Cost: £5 per class or £4 per class if paid in advance.
Classes (Mondays and Fridays inclusive):
• Monday 9th Jan 2012 to Friday 10th February
• Monday 20th Feb to Friday 30th March
• Monday 16th April to Friday 1st June
• Monday 11th June to Monday 23rd July
Email Marianne Gutierrez gutierrez.marianne@gmail.com for more information
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