scholarly journals The effect of initial weight of seedlings grafted from tissue-cultured and local strain seedlings on growth and carrageenan content of the Red Seaweed (Kappaphycus alvarezii) using a grafting method

2019 ◽  
Vol 370 ◽  
pp. 012037
Author(s):  
A L Embi ◽  
L O M Aslan ◽  
W Iba ◽  
A B Patadjai ◽  
E Sulistiani
Keyword(s):  
Kappaphycus Alvarezii ◽  
Local Strain ◽  
Red Seaweed ◽  
Initial Weight

scholarly journals The Effect of Red Seaweed (Kappaphycus alvarezii) Biscuits on Hemoglobin Levels and Body Weight among the First Trimester Pregnant Women

2021 ◽  
Vol 9 (A) ◽  
pp. 1019-1023
Author(s):  
Salma Salma ◽  
Veni Hadju ◽  
Jamaluddin Jompa ◽  
Stang Stang ◽  
Sundari Sundari ◽  
...  
Keyword(s):  
Body Weight ◽  
Pregnant Women ◽  
Kappaphycus Alvarezii ◽  
Community Health Center ◽  
Intervention Group ◽  
First Trimester ◽  
Control Group ◽  
P Value ◽  
Red Seaweed ◽  
Chi Square

BACKGROUND: The prevalence of anemic pregnant women is still reasonably high, especially in low-middleincome countries. AIM: This study was aimed to assess the effect of giving red seaweed (Kappaphycus alvarezii) biscuits on changes in hemoglobin (Hb) levels and body weight of pregnant women in the first trimester. METHODS: The study used a quasi-experiment pretest-posttest study design. The study was conducted from April to June 2021 involving pregnant women in the first trimester who living in the working area of the Wapunto Community Health Center, Muna Regency, Indonesia. A total of 45 pregnant women were selected purposively and assigned to three different groups. The first group was given two pieces of red seaweed biscuits per day. The second group was given two pieces of red seaweed biscuits plus Fe tablets (60 mg/day), and the last group was given Fe tablet only (60 mg/day). Chi-square, paired sample t-test, Wilcoxon, and Kruskal–Wallis tests were performed using SPSS. RESULTS: The intervention group of red seaweed biscuits plus Fe tablets had the highest increase in Hb levels after 8 weeks of intervention, followed by the red seaweed biscuit group and the control group (0.97, 0.78, and 0.60 g/dL, respectively, p-value < 0.05). The red seaweed biscuit intervention group had the highest changes for body weight compared to the red seaweed biscuit plus Fe tablet group and the control group (1.07, 0.43, and 0.04 kg, respectively). CONCLUSION: The provision of red seaweed biscuits could increase maternal Hb level and weight during the first trimester of their pregnancy.

scholarly journals Seaweed-Based Products and Mushroom β-Glucan as Tomato Plant Immunological Inducers

Vaccines ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. 524
Author(s):  
Paulo César de Melo ◽  
Carolina Figueiredo Collela ◽  
Tiago Sousa ◽  
Diana Pacheco ◽  
João Cotas ◽  
...  
Keyword(s):  
Enzymatic Activity ◽  
Phenylalanine Ammonia Lyase ◽  
Lentinula Edodes ◽  
Kappaphycus Alvarezii ◽  
Red Alga ◽  
Red Seaweed ◽  
Tomato Plants ◽  
Activity Of Enzymes ◽  
Induction Of Resistance ◽  
Fresh Tomato

The effects of the abiotic inducers β-glucan, extracted from Shiitake (Lentinula edodes), BFIICaB® (Kappaphycus alvarezii) and BKPSGII® (K. alvarezii X Sargassum sp.) on tomato plants infected with Fusarium oxysporum f. sp. lycopersici (FOL) were evaluated through the activity of enzymes related to the induction of resistance at 5 and 10 days after inoculation (DAI). Tomato plants (21 days old, after germination) were inoculated with the pathogen conidia suspension and sprayed with 0.3% aqueous solutions of the inducers. The activities of the enzymes β-1,3-glucanase, peroxidase and phenylalanine ammonia lyase (PAL) were evaluated in fresh tomato leaves collected at 5 and 10 DAI. In all treatments, peroxidase showed the highest enzymatic activity, followed by β-1,3-glucanase and PAL. Between the seaweeds, the inducers extracted from the red alga Kappaphycus alvarezii (BFIICaB®) promoted the highest enzymatic activity. The exception was BKPSGII® (K. alvarezii X Sargassum sp.) where the influence of Sargassum sp. resulted in higher peroxidase activity (4.48 Δab600 mg P−1 min−1) in the leaves, 10 DAI. Both the red seaweed K. alvarezii and the brown alga Sargassum sp. promoted activities of β-1,3-glucanase, peroxidase and PAL.

scholarly journals Enhancement in the Physico-Mechanical Functions of Seaweed Biopolymer Film via Embedding Fillers for Plasticulture Application—A Comparison with Conventional Biodegradable Mulch Film

Polymers ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 210 ◽  
Author(s):  
Hasan M ◽  
E.W.N. Chong ◽  
Shima Jafarzadeh ◽  
M.T. Paridah ◽  
Deepu Gopakumar ◽  
...  
Keyword(s):  
Contact Angle ◽  
Calcium Carbonate ◽  
Polymer Film ◽  
Kappaphycus Alvarezii ◽  
Composite Films ◽  
Vapor Permeability ◽  
Red Seaweed ◽  
Mulch Film ◽  
Biodegradable Mulch ◽  
Biopolymer Film

This study aimed to compare the performance of fabricated microbially induced precipitated calcium carbonate– (MB–CaCO3) based red seaweed (Kappaphycus alvarezii) bio-polymer film and commercial calcium carbonate– (C–CaCO3) based red seaweed bio-film with the conventional biodegradable mulch film. To the best of our knowledge, there has been limited research on the application of commercial CaCO3 (C–CaCO3) and microbially induced CaCO3 (MB–CaCO3) as fillers for the preparation of films from seaweed bio-polymer and comparison with biodegradable commercial plasticulture packaging. The results revealed that the mechanical, contact angle, and biodegradability properties of the polymer composite films incorporated with C–CaCO3 and MB–CaCO3 fillers were comparable or even superior than the conventional biodegradable mulch film. The seaweed polymer film incorporated with MB–CaCO3 showed the highest contact angle of 100.94°, whereas conventional biodegradable mulch film showed a contact angle of 90.25°. The enhanced contact angle of MB–CaCO3 resulted in high barrier properties, which is highly desired in the current scenario for plasticulture packaging application. The water vapor permeability of MB–CaCO3 based seaweed films was low (2.05 ± 1.06 g·m/m2·s·Pa) when compared to conventional mulch film (2.68 ± 0.35 g·m/m2·s·Pa), which makes the fabricated film an ideal candidate for plasticulture application. The highest tensile strength (TS) was achieved by seaweed-based film filled with commercial CaCO3 (84.92% higher than conventional mulch film). SEM images of the fractured surfaces of the fabricated films revealed the strong interaction between seaweed and fillers. Furthermore, composite films incorporated with MB–CaCO3 promote brighter film, better water barrier, hydrophobicity, and biodegradability compared to C–CaCO3 based seaweed polymer film and conventional mulch film. From this demonstrated work, it can be concluded that the fabricated MB–CaCO3 based seaweed biopolymer film will be a promising candidate for plasticulture and agricultural application.

scholarly journals DAYA RAMBAN (GRAZING) IKAN BARONANG (SIGANUS GUTTATUS) YANG DIPELIHARA DENGAN RUMPUT LAUT KAPPAPHYCUS ALVAREZII DI PERAIRAN TANJUNG TIRAM, KABUPATEN KONAWE SELATAN

2019 ◽  
Vol 19 (2) ◽  
pp. 309
Author(s):  
Rezki Amalyah ◽  
Ma'ruf Kasim ◽  
Muhammad Idris
Keyword(s):  
Kappaphycus Alvarezii ◽  
Stocking Density ◽  
Grazing Rate ◽  
Experimental Unit ◽  
Seaweed Cultivation ◽  
Initial Weight ◽  
Floating Raft ◽  
Commercial Feed ◽  
Seaweed Production ◽  
Fish Grazing

Abstrak: Serangan Hama dan penyakit merupakan penyebab terganggunya pertumbuhan rumput laut sehingga menyebabkan menurunnya produksi rumput laut. Salah satu hama dalam rumput laut adalah ikan baronang (Siganus guttatus). Tujuan dari penelitian ini adalah untuk mengetahui tingkat perambanan S. guttatus terhadap rumput laut K. alvarezii dengan kepadatan berbeda. Penelitian dilakukan pada bulan Januari 2018 di areal budidaya rumput laut perairan Desa Tanjung Tiram, Kabupaten Konawe Selatan. Penelitian dilakukan dengan menggunakan metode rakit jaring apung sebanyak 3 buah dengan ukuran 440 x 100 x 50 cm. Rakit dibagi menjadi empat petak serta diberi label. Dalam masing-masing petak dibudidayakan rumput laut K. alvarezii dengan berat awal 100 g per rumpun dimana masing-masing unit percobaan dibedakan berdasarkan padat tebar 600 g/m2, 900 g/m2 dan 1200 g/m2. Pada setiap pengambilan data grazing (daya ramban)  ikan baronang dalam wadah rakit apung ditebar 1 ekor ikan baronang dengan bobot sama sebesar 135 g. Selama 21 hari penelitian, grazing ikan baronang tertinggi berada pada kepadatan 1200 g/m2  sebesar  -23,58% dan yang terendah pada kepadatan 600 g/m2sebesar -12,4%.Kata Kunci : Grazing, Ikan Baronang, Rumput laut, Rakit Jaring ApungAbstract: Pest and disease attacks are a cause of disruption of seaweed growth, which causes a decrease in seaweed production. One pest in seaweed is baronang fish (Siganus guttatus). The aim of this study is to determine grazing rate of S. guttatus on K. alvarezii seaweed with different densities. The study was conducted in January 2018 in the area of seaweed cultivation in the waters of Tanjung Tiram village, South Konawe Regency. The total of plots in one unit of floating cage was three plots pieces measuring 440 x 100 x 50 cm. Raft is divided into four plots and labeled. In each plot cultivated K. alvarezii seaweed with an initial weight of 100 g per clump where each experimental unit is differentiated based on stocking density of 600 g / m2, 900 g / m2 and 1200 g / m2. At each grazing data collection (drilling power) Baronang fish in floating raft containers were stocked with one Baronang fish with the same weight of 135 g. During maintenance, Baronang fish is given commercial feed as much as 5% of body weight. As for the 21 days of research, the highest Baronang fish grazing is at a density of 1200 g / m2 at -23.58% and the lowest at a density of 600 g / m2 at -12.4%.Keywords: Grazing, Baronang fish, seaweed, floating cage 

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