The present invention provides beta-cryptoxanthin crystals from plant source and a process for its preparation. The present invention particularly relates to a process for the preparation of high purity beta-cryptoxanthin crystals comprising at least about 10% by weight total xanthophylls, of which at least about 75% by weight is trans-beta-cryptoxanthin and the remaining including beta-carotene, and trace amounts of trans-capsanthin and other carotenoids derived from the plant source, including capsicum fruits. The production of beta-cryptoxanthin crystals with high content of trans-beta-cryptoxanthin makes it ideal and suitable for use as a provitamin A source material and also has potential effects on improving bone health and inhibiting bone resorption.

The present description discloses a method for storing reduced coenzyme Q10 (QH), which is capable of controlling oxidation. A first embodiment of the present invention relates to a method for storing QH, including storing a composition containing QH and having a water activity at 25 C. of 0.45 or less. A second embodiment of the present invention relates to a method for controlling oxidation of QH, including storing a composition containing QH and having a water activity at 25 C. of 0.45 or less. A third embodiment of the present invention relates to a composition containing QH and having a water activity at 25 C. of 0.45 or less.