Methylene cyclohexane Cyclopentane y (gamma) k (kappa)

Figure 1. IUPAC rings.

cleaved. Thus /?-apo-8'-carotenal should be designated 8'-apo-/?-carotene-8'-al.

There are rules for carotenoids with more than 40 carbons, retro double-bond structures, designated chiral centers, and the use of the primes. This area is covered in more detail elsewhere (14). Pfander gives the structure and reference for more than 600 carotenoids (16).

Homemade Pet Food Secrets

Homemade Pet Food Secrets

It is a well known fact that homemade food is always a healthier option for pets when compared to the market packed food. The increasing hazards to the health of the pets have made pet owners stick to containment of commercial pet food. The basic fundamentals of health for human beings are applicable for pets also.

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