2 HarvestPlus Technical Monographs are designed to provide a forum for HarvestPlus research outputs. Technical Monographs can be of two kinds: • state-of-the-art reviews that help to establish and define HarvestPlus research questions or • " gold standard " procedures to be followed in HarvestPlus research. HarvestPlus technical monographs are written by recognized experts in the field and are externally peer reviewed prior to publication.

/pdf/harvestplus-handbook-for-carotenoid-analysis-3bxqvjq4dx.pdf

HarvestPlus Handbook for Carotenoid Analysis.

Updated Brazilian database on food carotenoids: Factors affecting carotenoid composition

Carotenoid composition of Algerian date varieties (Phoenix dactylifera) at different edible maturation stages

Carotenoid composition from the Brazilian tropical fruit camu–camu (Myrciaria dubia)

Cactus pears (Opuntia ficus-indica) are draught resistant plants originated in Mexico. Their flattened stem segments, called cladodes, have moisture, protein and fibre contents of 92, 1-2 and 4-6% respectively, and a pectin content in the range of 0.8-3.3% depending on the species. They also contain certain concentration of carotenoids which are of special interest because of their antioxidant activity. This work is aimed to identify and quantify the main carotenoids present in the stems and to evaluate the effect of thermal treatments on the antioxidant activity and concentration of carotenoids and phenolic compounds. The carotenoids alpha-cryptoxanthin, beta-carotene and lutein were identified in the cladodes, the latter having the highest concentration. Thermal treatments increased the extractability of these pigments and the antioxidant activity was related to the carotenoids concentration. Total phenolic content decreased after the thermal treatments; however this result had little effect on the antioxidant activity. Mucilage present in the stems decreased the extractability of the carotenoids. (A)

Effect of Thermal Treatment on the Antioxidant Activity and Content of Carotenoids and Phenolic Compounds of Cactus Pear Cladodes (Opuntia ficus-indica)

Chemical Derivatization: Microscale Tests for the Presence of Common Functional Groups in Carotenoids

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Chemical Derivatization: Microscale Tests for the Presence of Common Functional Groups in Carotenoids