Effects of Ascophyllum marine plant extract powder (AMPEP) on tissue growth, proximate, phenolic contents, and free radi
- PDF / 697,723 Bytes
- 9 Pages / 595.276 x 790.866 pts Page_size
- 46 Downloads / 208 Views
Effects of Ascophyllum marine plant extract powder (AMPEP) on tissue growth, proximate, phenolic contents, and free radical scavenging activities in endemic red seaweed Gracilaria corticata var. cylindrica from India Pankaj Dawange 1 & Santlal Jaiswar 1 Received: 8 July 2020 / Revised and accepted: 9 September 2020 # Springer Nature B.V. 2020
Abstract The red algal genus Gracilaria has considerable economic importance due to its agar content and rapid growth. This study was conducted on endemic Gracilaria corticata var. cylindrica to optimize different concentrations of AMPEP (0.01, 0.1, and 1.0 g L−1) and exposure time (15, 30, and 60 min) as a plant growth stimulant. Effect of 0.1 g L−1 and 30 min was found to be maximum in enhancing the daily growth rate and branch induction. The highest daily growth rate and number of branches were 7.62 ± 0.4% day−1 and 40.33 ± 8.6%, respectively. After 7 weeks, the plants were harvested and tested for carbohydrate, protein, lipid, and total phenolic content and free radical scavenging activity. Treatment with concentration of 0.1 g L−1 and exposure time 30 min showed the highest total carbohydrate (7.78 ± 0.08%), lipid (0.83 ± 0.11%), and total phenolic content (0.38 ± 0.01%) while treatment with 1 g L−1 and 60 min exposure time showed highest protein content (0.53 ± 0.01%). The antioxidant activity response was also observed and it showed less scavenging activity compare with the control. Application of AMPEP can have capacity for producing large numbers of plantlets within 4–5 weeks, making it highly attractive for implementation in sustainable seaweed farming. The present study also confirmed the commercial utility of indigenous resource G. corticata var. cylindrica for farming and catering domestic agar demand. Keywords Gracilaria . Rhodophyta . AMPEP . Growth rate . Proximate . DPPH activity
Introduction Gracilaria corticata var. cylindrica (J. Agardh) Umamaheswara Rao is endemic to the Arabian Sea and was first reported in 1972 from Mandapam, Tamil Nadu, India. The species is distributed along the central west (Dixit 1980), west (Jha et al. 2009), and south east coast (Kaliaperumal et al. 1986) of India. Although species of Gracilaria generally produce agar with low gel strength (Armisen 1995), they have received prominence recently,
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10811-020-02254-6) contains supplementary material, which is available to authorized users. * Santlal Jaiswar [email protected] 1
Applied Phycology and Biotechnology Division, CSIR-Central Salt & Marine Chemicals Research Institute, Gijubhai Badheka Road, Bhavnagar 364002, India
due to drastic decline in commercial landings of Gelidium (Porse and Rudolph 2017). The improved technologies for agar processing coupled with viable methods of farming have improved the prospects of several regional Gracilaria spp. in the domestic market (Ashok et al. 2016). Worldwide agar manufacturing industries produced 14,500 t of agar including bacteriologica
Data Loading...
