Concentration of metals in locally grown and organic vegetables By: Stephani Lane & Aaron Pyle.

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Presentation transcript:

Concentration of metals in locally grown and organic vegetables By: Stephani Lane & Aaron Pyle

Purpose To determine metal concentration differences between organic and locally grown vegetables for healthy dietary decisions.

Overview Our Experiment Researched vegetables and metals to test Determined expected amount of each metal Purchased vegetables from a local store Blended vegetables Made 10, 20, 30, 40 and 50 ppm standards Ran experiment on the ICP

Vegetables

Metals Calcium Lead Magnesium Manganese Sodium

Metal Benefits Ca- Strong bones, dental care, prevents colon cancer, reduces obesity Pb- none Mg- prevent cardio vascular disease, regulates blood pressure, muscle and nerve function Mn- forming bones and enzymes, helps absorb vitamins, healthy function of the brain Na- maintains fluid balance, maintains healthy heart, eliminates excess CO 2

Metal Detriments Ca- heighten blood pressure, risk of cardio vascular disease, kidney stones Pb- Headaches, joint pain, fatigue, miscarriages Mg- Nausea, low blood pressure, irregular heart beat Mn- Chronic liver disease, psychosis, shaking Na- high blood pressure, kidney disease, osteoporosis

Method Weighed out approximately 34 g Blended each sample with 50 mL of water (100 mL for Broccoli) Filtered samples through a Buchner funnel Ran standards Ran samples

Standard Curves

Results Calcium Vegetables Locally Grown (ppm) Organic (ppm) Potato Zucchini Beets Broccoli

Results Manganese Vegetables Locally Grown (ppm) Organic (ppm) Potato Zucchini Beets Broccoli

Results Lead Vegetables Locally Grown (ppm) Organic (ppm) Potato Zucchini Beets Broccoli

Results Sodium Vegetables Locally Grown (ppm) Organic (ppm) Potato Zucchini Beets Broccoli

Results Magnesium Vegetables Locally Grown (ppm) Organic (ppm) Potato Zucchini Beets Broccoli

Conclusions Mn found only in organic beets Broccoli had lower organic concentrations, except for lead Beets had higher organic concentrations, except for lead Organic zucchini and potato's were higher in all categories

Conclusion Based on our data, a healthier dietary decision can be made concerning metal content.

Sources HealthProfessional/ articles/nutrition/healthy-eating/4-signs-youre- getting-too-much-sodium.html HealthProfessional/ supplements/ingredientmono-182- MANGANESE.aspx?activeIngredientId=182&active IngredientName=MANGANESE