Anti-oxidant Properties of Dried Plums
Research shows dried plum can be a solid alternative to chemicals. As a scientific study carried out by Texas AgriLife Research shows, dried plums can easily replace BHA and BHT, two petroleum-based antioxidants.
Dried plums used at 3% or 6% levels were as effective as BHA/BHT in retarding lipid oxidation in PR sausage patties.
Dried plums at 3% were as effective as BHA/BHT in patties that were cooked, vacuum packaged, and stored at -20°C.
And at 6%, dried plums surpassed the efficiency of BHA/BHT for retarding oxidative rancidity.
Sensory evaluations indicated that dried plums can:
- enhance sweet taste
- decrease salt and bitter tastes
- mask “cooked pork/brothy, cooked pork fat, spicy/peppery, and sage flavors.”
Overall, pork sausage with 3% dried plums was deemed as acceptable to consumers as patties with BHA/BHT, although patties with 6% plum product did not achieve as high notes.
Inclusion of 3% dried plums was effective as a natural antioxidant for suppressing lipid oxidation in precooked pork sausage patties.
(Source: Journal of Food Science, Volume 73 Issue 5, April 2008.)
Under scrutiny
“This is encouraging news for the industry, because it can now turn to a natural ingredient such as dried plums, which is much more palatable to the consumer and makes for a cleaner label,” says John Taylor.
BHA and BHT–used in both human and pet food–are presently under increased scrutiny, and are mainly criticized by food activists for their carcinogenic potential: The International Agency for Research on Cancer (part of the World Health Organization), considers BHA could be carcinogenic to humans, while the State of California has listed it as a carcinogen.
According to some studies, BHT also has cancer causing possibilities (urinary bladder, and it could be a promoter of thyroid carcinogenesis).
| Phenolic Composition of Dreid Plums | |
| Compound | Pitted Prunes (mg/kg) |
| Neochlorogenic Acid | 1306±629 |
| 3’-Coumaroylquinic Acid | 15±13 |
| Catechin | nd |
| Chlorogenic Acid | 436±201 |
| Coumeric Acid | 10±5 |
| Other Cinnamates | 24±54 |
| Rutin | 33±25 |
| Other Flavonols | 9±13 |
| Anthocyanins | nd |
| HMF | 220±189 |
| Sorbic Acid | 818±310 |
| Total Phenolics | 1840±855 |
Source: Donovan et al. 1998. J. Agric. Food Chem. 46:1247-1252



