PhytoScience - Article

PHYTOCHEMICAL ANALYSES - ORAC


Brunswick Laboratories offers a wide range of industry-leading, proprietary tests that measure the total antioxidant capacity of substances, including a fat-soluble assay for the peroxyl radical and assays for the hydroxyl (HORAC) and peroxynitrite (NORAC) radicals.

  1. ORAC hydro (peroxyl radical/water-soluble)
  2. ORAC lipo (peroxyl radical/fat-soluble) 
  3. HORAC  (hydroxyl radical)
  4. NORAC (peroxynitrite radical) 
  5. Total ORAC     
    • ORAC hydro
    • ORAC lipo
    • ORACHO 
  6. Total Phenolics Content  
  7. Total Anthocyanins Content

What does the ORAC value tell us?


The ORAC assays are performed in vitro, in the test tube, and therefore do not determine the bioavailability within the body. The high ORAC value indicates that the tested sample possesses a high potency of antioxidant activity chemically.

There is a lot of "chatter" in the marketplace concerning who/what has the highest ORAC value. It is very important to understand the difficulty in making direct comparisons. Harvest times and growing conditions dramatically affect the antioxidant capacity of fruits, berries, nuts and vegetables.

Physical state of sample; fruit/berries that are in a fresh state, freeze dried state, concentrated extract, "spiked" sample can affect the ORAC value several thousand percent. The absence of moisture in the analyzed sample tends to "concentrate" the antioxidant compounds, as shown in raisins and prunes.

If all conditions are equal between two samples; please insure that each employs the same unit of measure in their results, as some companies may use "small print" for results "per 100 grams" instead of "per 1 gram", or "per 100 liters" instead of "per 1 liter". Also, please note that most companies use their "marketing name" for a product being compared, whose formulation is proprietary to the company.

The fact that a commercial product contains plant products does not necessarily mean that the ORAC value of the product will be the same as the plant product in its' pure form.

 

 

 

 

 

 

Brunswick Laboratories are capable of conducting comprehensive vitamins and phytochemicals "fingerprinting" and compound characterization.

  1. Vitamins
    • Vitamin A
    • Vitamin B1
    • Vitamin B2
    • Vitamin B3
    • Vitamin C
    • Vitamin D
    • Vitamin K1
    • alpha-tocopherol
    • beta-tocopherol
    • delta-tocopherol
    • gamma-tocopherol
    • alpha-tocotrienol
    • beta-tocotrienol
    • delta-tocotrienol
    • gamma-tocotrienol

  2. Carotenoids
    • alpha-Carotene
    • beta-Carotene
    • Lutein
    • Lycopene
    • Zeaxanthin
    • Astaxanthi 

  3. Organic Acid
    • Citric acid
    • Fumaric acid
    • Malic acid
    • Quinic acid
    • Succinic acid
    • Tartaric acid

  4. Phenolic Acid
    • Benzoic acid
    • Caftaric acid
    • Caffeic acid
    • Chlorogenic acid
    • Cinnamic acid
    • -Coumaric acid
    • Ellagic acid (free)
    • Ellagic acid (total)
    • Ferulic acid
    • Gallic acid
    • Genisten acid
    • Hippuric acid
    • 4-hydroxybenzoic acid
    • Lipoic acid
    • 3-(6-hydroxyphenyl) Propionic acid
    • Protocatechuic acid
    • Salicylic acid
    • Sinapic acid
    • Syringic acid
    • Trans-6-hydroxy-3-methoxycinnamic acid
    • Vanillin acid
    • Veratric acid

  5. Anthocyanins
    • Cyanidin aglycone
    • Cyanidin-3-glucoside
    • Delphinidin aglycone
    • Delphinidin-3-glucosie
    • Malvidin aglycone
    • Malvidin-3-glucoside-coumarate
    • Malvidin-3-hexose
    • Malvidin-(6-acetyl)-3-glucoside
    • Pelargonidin aglycone
    • Peonidin-3-hexose
    • Peonidin-3-arabinose
    • Petunidin aglycone
    • Petunidin-3-hexose
    • Petunidin-3-glucoside-coumarate
    • Specific anthocyanin identification

  6. Proanthocyanidin (Condensed Tannins)
    • Monomer to Hexamer
    • Identification & Quantitation

  7. Catechins
    • Catechin
    • (-) Epicatechin
    • Epigallocatechin
    • Epigallocatechin gallate
    • Catechin gallate

  8. Phytoestrogen
    • Daidzein
    • Daidzin
    • Genisten
    • Genistin
    • Glycitein
    • Glycitin

  9. Other Flavonoids
    • Acetovanillone
    • Apigenin
    • Coumarin
    • Ethyl cinnamate
    • Ethyl ferulate
    • Hesperidin
    • 3-hydroxyfavone
    • 4-hydroxycoumarin
    • Isoquercitrin
    • kaempferol
    • Luteolin
    • Quercitrin
    • Quercetin
    • Resveratrol
    • Rutin
    • Syringaldehyde
    • Vanillin




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