• February 2021
    Vol 3 No 1 (2021)

    In the third volume and first issue of Indonesian Journal of Natural Pigments, "Characterization of Tambjamines Pigment from Marine Bacterium Pseudoalteromonas sp. PM2 Indigenous from Alor Island, Indonesia" has been selected as our journal cover. This research paper has been reported by Setiyono et al. on page 16 (DOI: https://doi.org/10.33479/ijnp.2021.03.1.16). In this article, it was highlighted a success isolation of six new yellow-pigmented marine bacteria (strain PS2, PM2, SB11, SB13, SB21, and SB23) from seawater from different sampling sites on Alor Island, Indonesia. The UV−Vis and FTIR spectra of the crude pigment extracts of the six strains showed the characteristics of tambjamines, a group of yellow pigments commonly found in nudibranchs and bryozoans. Based on the analysis of 16S rRNA gene sequences, strain PM2 was closely related to several species in genus Pseudoalteromonas with a similarity of more than 99%. This new finding indicated that in the group of marine bacteria, tambjamine might be only synthesized by members from genus Pseudoalteromonas.

  • Agustus 2020
    Vol 2 No 2 (2020)

    In the second volume and second issue of Indonesian Journal of Natural Pigments, "Carotenoid Production by Rhodosporidium paludigenum Using Cassava Starch Hydrolyzed by Bacillus subtilis as Substrate" has been selected as our journal cover. This research paper has been reported by Warjoto et al. on page 36 (DOI: https://doi.org/10.33479/ijnp.2020.02.2.36). In this article, it was highlighted that three major stages of this study included cassava starch hydrolysis by B. subtilis (a), carotenoid production by R. paludigenum using cassava starch hydrolysate as substrate (b), and carotenoid extraction from the submerged yeast fermentation culture as well as the total carotenoid determination (c). The total carotenoid yield towards biomass was 69.68 ± 0.08 µg/g.

  • February 2020
    Vol 2 No 1 (2020)

    In the second volume and first issue of Indonesian Journal of Natural Pigments, "Thermal Degradation Kinetics of Encapsulated Palm Carotenes using Different Combination of Wall Materials" has been selected as our journal cover. This research paper has been reported by Limantara et al. on page 21 (DOI: https://doi.org/10.33479/ijnp.2020.02.1.21). In this article, it was reported that carotenes concentrate obtained from crude palm oil was encapsulated using maltodextrin in combination with three surface active agents, i.e. Tween-80, Tween-20, and Arabic gum.  Thermal degradation kinetics of the encapsulates were calculated using Arrhenius equation, showing the order of stability: Tween-80 > Tween-20 > Arabic gum.

  • Agustus 2019
    Vol 1 No 2 (2019)

    In the first volume and second issue of Indonesian Journal of Natural Pigments, "Carotenoid Analysis of Ripe Banana Flesh and Peel from Three Cultivars of Banana" has been selected as our journal cover. This research paper has been reported by Limantara et al. on page 60 (DOI: https://doi.org/10.33479/ijnp.2019.01.2.60). In this article, it was reported that the highest total carotenoid was found in the Raja banana among the three cultivars tested. Three carotenoids, lutein, α-Car, and β-Car, were separated and identified from the extracts of fresh flesh and peel by HPLC and LC-MS analyses. The lutein was found as the major carotenoid present in both fresh flesh and peel.

  • February 2019
    Vol 1 No 1 (2019)

    In the first volume and first issue of Indonesian Journal of Natural Pigments, "Effects of pH and Storage Time on the Stability of Papaya and Carrot Extracts" has been selected as our journal cover. This research paper has been reported by Yuliati et al. on page 25 (DOI: https://doi.org/10.33479/ijnp.2019.01.1.25). In this report, chroma values and stability of papaya and carrot extracts consisting of natural pigments were greatly influenced by pH, where carrot extract showed better values. The high chroma values were observed when the buffer pH was neutral or alkaline. Moreover, the papaya and the carrot extracts were not stable under acidic condition, but more stable under neutral and alkaline conditions.