Biomedical Engineering Reference
In-Depth Information
PUFAs in general aid in the prevention and treatment of scaly dermatitis and skin
dehydration (Kim et al., 2008). Ethanolic or supercritical CO
2
extracts are gaining
commercial recognition in lipid-based creams and lotions as a result of their nourish-
ing and protective effects on the skin. In progressing skin care research, glycol- and
phospholipids should be given special attention (Pulz and Gross, 2004). Novel and
innovative cost-effective technologies are the way to satisfy the growing demands of
the health-conscious consumer.
10.2.4 o
ther
p
otential
a
ppliCations
oF
a
lGal
b
ioMass
Apart from the key algal compound groupings, mentioned above, there are new
market sectors and applications emerging in algal biotechnology.
10.2.4.1 Cosmetic Extracts
Marine microalgae contribute to a range of extracts rich in proteins, vitamins, and
minerals, which are incorporated as active ingredients into a number of cosmetic
products (Kim et al., 2008). In addition to carotenoids, phycobiliproteins, and
PUFAs, microalgae produce a number of other compounds (that exhibit a range of
benefits) appealing to cosmetic formulators (Table 10.8).
These compounds prevent blemishes, repair damaged skin, aid in the treatment
of seborrhoea (greasy skin caused by excess sebum), and inhibit the inflammation
process (Kim et al., 2008). They are formulated into face and skin care products,
TABLE 10.8
Microalgal Compounds and Their Cosmeceutical Properties
Compound
Cosmeceutical Properties
Microsporines and microsporine-like
amino acids (MAAs)
Skin protection against UV radiation
Antioxidant
Tocopherols
Protection against UV irradiation or oxidative
damage
Prevention of light-induced pathologies of the
human skin and eyes
Prevention of degenerative disorders (atherosclerosis,
cardiovascular disease, and cancer)
Phenolic compounds
Antioxidative action
Protection against UV irradiation
Terpenoids
Antioxidant
Emmolient
Blood stimulant
Diuretic
Moisturizing activities
Source:
Adapted from Kim et al. (2008).
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