Log in

Relevant bibliographies by topics / Ulva algae / Journal articles

To see the other types of publications on this topic, follow the link: Ulva algae.

Journal articles on the topic 'Ulva algae'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Ulva algae.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Farhan, Andi M., Andi Zaky Hanifan, Rifqiyanti Ismi, Al Fikriyani, Chanifah T. Maulita, and Irene E. Rieuwpassa. "Potential extract of green algae (Ulva luctuca) as antimicrobial in mouthwash: literature review." Makassar Dental Journal 11, no. 3 (2022): 270–74. http://dx.doi.org/10.35856/mdj.v11i3.640.

Full text

Abstract:

Green algae as one of the marine natural resources which is included in the main seaweed is found in many coastal areas of In-donesia. The bioactive component that acts as an antibacterial agent in green algae type Ulva lactuca is ulvan polysaccharide extract. Ulvan is a cell wall polysaccharide that accounts for 9-36% dry weight of Ulva biomass and is mainly composed of rhamnose sulfate, uronic acid (glucuronic acid and iduronic acid) and xylose. Polysaccharide ulvan extracted from Ulva lactuca can be one of the antimicrobial materials used in mouthwash in dentistry.

APA, Harvard, Vancouver, ISO, and other styles

2

Torres, Fernando G., and Adrian Urtecho. "Ulvan From <i>Ulva Nematoidea</i> as a Novel Active Surface Material for Triboelectric Nanogenerators." Detritus, no. 30 (March 20, 2025): 63–74. https://doi.org/10.31025/2611-4135/2025.19471.

Full text

Abstract:

Marine algae represent an underutilized biomass resource. Biopolymers can be extracted from different types of algae. Alginates and carrageenans are among the most common biopolymers extracted from brown and red algae. They find applications in the food and biomaterials industries, among others. However, other available marine algae are not commercially exploited. For instance, green algae from the Ulvaceae family remain largely unexploited and have no industrial applications. In particular, Ulva species can serve as a promising source for the extraction of a biopolymer known as ulvan. This wo

APA, Harvard, Vancouver, ISO, and other styles

3

Batista de Brito, Paulo Ovídio, Gabriela De Sousa Ferreira, Francisco Ícaro Carvalho Aderaldo, Joana D'arck Farias Braga, Janacinta Nogueira De Souza, and Franklin Aragão Gondim. "CRESCIMENTO E TEORES RELATIVOS DE CLOROFILA EM PLANTAS DE GIRASSOL SUPLEMENTADAS COM ALGAS MISTAS, Hypnea pseudomusciformis OU Ulva fasciata." Nativa 8, no. 4 (2020): 533–37. http://dx.doi.org/10.31413/nativa.v8i4.9244.

Full text

Abstract:

O trabalho objetivou analisar os efeitos da utilização das algas Hypnea pseudomusciformis, Ulva fasciata, e de algas mistas coletadas na Praia do Pacheco, Caucaia-CE sobre o crescimento de girassol (Helianthus annuus L.) avaliando-se: variáveis de crescimento e teores relativos de clorofila. O trabalho foi conduzido em casa de vegetação. As sementes de girassol foram semeadas em baldes de plástico com capacidade para cinco litros. O experimento foi dividido em oito tratamentos: areia (100% do volume em areia); areia + 100% da recomendação de nitrogênio (RN) em húmus; 100% da RN em algas mistas

APA, Harvard, Vancouver, ISO, and other styles

4

Yu, Dingfeng, Jinming Li, Qianguo Xing, Deyu An, and Jinghu Li. "The Dynamics of Floating Macroalgae in the East China Sea and Its Vicinity Waters: A Comparison between 2017 and 2023." Water 15, no. 21 (2023): 3797. http://dx.doi.org/10.3390/w15213797.

Full text

Abstract:

Ulva prolifera and Sargassum are two common floating macroalgae in China’s coastal algal bloom events. Ulva prolifera frequently emerges concomitantly with Sargassum outbreaks, thereby presenting challenges to the monitoring of algal blooms, thereby presenting challenges to the monitoring of algae. To tackle the challenge of differentiating between Ulva prolifera and Sargassum, this study employs Sentinel-2 MSI data for spectral analysis. Notably, significant disparities in the Remote Top of Atmosphere Reflectance (Rtoa) between Ulva prolifera and Sargassum are observed. This study proposes a

APA, Harvard, Vancouver, ISO, and other styles

5

Hassaan, Mohamed A., Ahmed El Nemr, Marwa R. Elkatory, et al. "Enhancement of Biogas Production from Macroalgae Ulva latuca via Ozonation Pretreatment." Energies 14, no. 6 (2021): 1703. http://dx.doi.org/10.3390/en14061703.

Full text

Abstract:

One of the dominant species of green algae growing along the Mediterranean coast of Egypt is Ulva lactuca. Pretreatment can have a major effect on biogas production because hydrolysis of the algae cell wall structure is a rate-limiting stage in the anaerobic digestion (AD) process. The use of ozone, a new pretreatment, to boost biogas production from the green algae Ulva lactuca was investigated in this study. Ozonation at various dosages was used in contrast to untreated biomass, and the effect on the performance of subsequent mesophilic AD using two separate inoculums (cow manure and activat

APA, Harvard, Vancouver, ISO, and other styles

6

Ulaan, Gia Aprilia Kartini, Adithya Yudistira, and Henki Rotinsulu. "UJI AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOL ALGA Ulva lactuca MENGGUNAKAN METODE DPPH (1,1 diphenyl-2-picrylhydrazyl)." PHARMACON 8, no. 3 (2019): 535. http://dx.doi.org/10.35799/pha.8.2019.29327.

Full text

Abstract:

Ulva lactuca Algae habitat was found in shallow marine waters and its morphology is thin and flat thallus. Ulva lactuca Algae, known as sea lettuce, contains a lot of chlorophyll in its cells. Chlorophyll has the ability as a free radical scavenger and also has antioxidant activity. Antioxidants are compounds that could inhibit oxidation reactions by binding to free radicals and highly reactive molecules. This study was conducted to determine the antioxidant activity of ethanol extract of Algae Ulva lactuca obtained from the Lembeh Strait, Bitung City. Ulva lactuca Algae was extracted by macer

APA, Harvard, Vancouver, ISO, and other styles

7

Obolski, Uri, Thomas Wichard, Alvaro Israel, Alexander Golberg, and Alexander Liberzon. "Modeling the growth and sporulation dynamics of the macroalga <i>Ulva</i> in mixed-age populations in cultivation and the formation of green tides." Biogeosciences 19, no. 8 (2022): 2263–71. http://dx.doi.org/10.5194/bg-19-2263-2022.

Full text

Abstract:

Abstract. Ulva is a widespread green algal genus with important ecological roles and promising potential as a seagriculture crop. One of the major challenges when cultivating Ulva is sudden biomass disappearance, likely caused by uncontrolled and unpredicted massive sporulation. However, the dynamics of this process are still poorly understood. In this study, we propose a mathematical model describing the biomass accumulation and degradation of Ulva, considering the potential impact of sporulation inhibitors. We developed a differential equation model describing the time evolution of Ulva biom

APA, Harvard, Vancouver, ISO, and other styles

8

Cao, Thi Thuy Hang, Nguyen Ha Vy Tran, Thi Thuan Nguyen, et al. "Diversity of seaweed-derived marine bacteria producing sulfated polysaccharide-degrading enzymes: Isolation, Screening, and Identification." Vietnam Journal of Marine Science and Technology 25, no. 2 (2025): 141–50. https://doi.org/10.15625/1859-3097/22729.

Full text

Abstract:

Marine bacteria associated with algae represent a valuable source of enzymes capable of degrading complex polysaccharides, such as fucoidan and ulvan. This study investigated bacteria isolated from 12 species of brown algae and 8 species of green algae, yielding 126 and 65 strains, respectively. Selective media supplemented with fucoidan or ulvan as the sole carbon source was employed to screen for enzymatic activity. The bacterial strains were characterized based on morphological features, and molecular identification was conducted through 16S rRNA sequencing. Several isolates demonstrated si

APA, Harvard, Vancouver, ISO, and other styles

9

Keintjem, Brigieta, Defny S. Wewengkang, and Fatimawali Fatimawali. "AKTIVITAS PENGHAMBATAN PERTUMBUHAN MIKROORGANISME DARI EKSTRAK DAN FRAKSI ALGA Ulva lactuca TERHADAP Escherichia coli, Staphylococcus aureus, DAN Candida albicans." PHARMACON 8, no. 2 (2019): 397. http://dx.doi.org/10.35799/pha.8.2019.29306.

Full text

Abstract:

ABSTRACT Algae have long been used for the treatment of various types of diseases. Ulva lactuca is one of the algae, which contains bioactive substances as antimicrobial, antifungal, and antioxidant. This study aims to determine the microorganisms growth inhibitory activity from Ulva lactuca algae obtained from the of Lembeh Strait waters in City of Bitung against microorganisms Escherichia coli, Staphylococcus aureus and Candida albicans. Ulva lactuca algae was extracted using maceration method with ethanol solvent and fractionated with methanol, n-hexan and chloroform solvents. Testing of an

APA, Harvard, Vancouver, ISO, and other styles

10

Yamamoto, Masayoshi, Susanne Baldermann, Keisuke Yoshikawa, Akira Fujita, Nobuyuki Mase, and Naoharu Watanabe. "Determination of Volatile Compounds in Four Commercial Samples of Japanese Green Algae Using Solid Phase Microextraction Gas Chromatography Mass Spectrometry." Scientific World Journal 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/289780.

Full text

Abstract:

Green algae are of great economic importance. Seaweed is consumed fresh or as seasoning in Japan. The commercial value is determined by quality, color, and flavor and is also strongly influenced by the production area. Our research, based on solid phase microextraction gas chromatography mass spectrometry (SPME-GC-MS), has revealed that volatile compounds differ intensely in the four varieties of commercial green algae. Accordingly, 41 major volatile compounds were identified. Heptadecene was the most abundant compound from Okayama (Ulva prolifera), Tokushima (Ulva prolifera), and Ehime prefec

APA, Harvard, Vancouver, ISO, and other styles

11

Adrien, Amandine, Antoine Bonnet, Delphine Dufour, Stanislas Baudouin, Thierry Maugard, and Nicolas Bridiau. "Anticoagulant Activity of Sulfated Ulvan Isolated from the Green Macroalga Ulva rigida." Marine Drugs 17, no. 5 (2019): 291. http://dx.doi.org/10.3390/md17050291.

Full text

Abstract:

(1) Background: Brown and red algal sulfated polysaccharides have been widely described as anticoagulant agents. However, data on green algae, especially on the Ulva genus, are limited. This study aimed at isolating ulvan from the green macroalga Ulva rigida using an acid- and solvent-free procedure, and investigating the effect of sulfate content on the anticoagulant activity of this polysaccharide. (2) Methods: The obtained ulvan fraction was chemically sulfated, leading to a doubling of the polysaccharide sulfate content in a second ulvan fraction. The potential anticoagulant activity of bo

APA, Harvard, Vancouver, ISO, and other styles

12

Lee-Rangel, Héctor Aarón, José Alejandro Roque-Jiménez, Rubén Oswaldo Cifuentes-López, et al. "Evaluation of Three Marine Algae on Degradability, In Vitro Gas Production, and CH4 and CO2 Emissions by Ruminants." Fermentation 8, no. 10 (2022): 511. http://dx.doi.org/10.3390/fermentation8100511.

Full text

Abstract:

Livestock production systems are responsible for producing ~18% of the total anthropogenic greenhouse gas (GHG) emissions. Numerous alternatives, such as feed additives or supplements, have been proposed to meet these challenges. Marine algae have been proposed for gas reduction in ruminants; nevertheless, there are still very few experimental reports. Thus, the objective of the current study was to identify the volatile organic compounds (VOCs) in three marine algae—Kelp (Macrocystis pyrifera), Ulva (Ulva spp.), and Silk (Mazzaella spp.)—and to test their in vitro ruminal fermentation charact

APA, Harvard, Vancouver, ISO, and other styles

13

KOÇ BİLİCAN, Behlül, and Audrius Sigitas MARUŠKA. "A STUDY ON DETERMINATION OF TOTAL PHENOLIC AND PROTEIN AMOUNTS OF WASTE GREEN ALGAE OF MAMASIN DAM LAKE (AKSARAY-TURKEY)." Mühendislik Bilimleri ve Tasarım Dergisi 12, no. 1 (2024): 132–39. http://dx.doi.org/10.21923/jesd.1421074.

Full text

Abstract:

The excessive proliferation of green algae in aquatic ecosystems threatens aquatic life, leading to oxygen depletion and water pollution. This study investigates two common green algae species, Ulva sp. and Cladophora sp., with potential in terms of protein and phenolic compounds. Cladophora sp. and Ulva sp. extracts were analyzed for total phenolic content using the Folin-Ciocalteau method. Despite lower phenolic content compared to specific plant species, both algae species exhibit various phenolic compounds. GC-MS analysis indicates the presence of major compounds such as limonene in Cladop

APA, Harvard, Vancouver, ISO, and other styles

14

Rocha, Jamilly Sousa, Daniele Santos, Mateus Aranha Martins, et al. "Sea lettuce (Ulva ohnoi) cultivation in biofloc technology: growth performance and characterization of bioactive compounds." Boletim do Instituto de Pesca 49 (November 17, 2023): e848-e848. http://dx.doi.org/10.20950/1678-2305/bip.2023.49.e848.

Full text

Abstract:

This work evaluated the biofloc technology cultivation of Ulva ohnoi on its growth performance and biocompounds contents. Ulva ohnoi was cultivated under an initial density of 6 g·L-1 for 28 days using water from a biofloc tank which was exchanged daily at a 90% rate. Temperature, salinity, and illuminance were measured daily. Algae growth and their density was adjusted weekly. Results showed an average plant growth of 1.15%·day-1 (49.5 g·week-1). A significant difference was observed when comparing the initial (2.64 ± 0.3%) and final (4.62 ± 0.2%) ulvan concentration, in addition to a protein

APA, Harvard, Vancouver, ISO, and other styles

15

Huang, Ailan, Xinming Wu, Fuping Lu, and Fufeng Liu. "Sustainable Production of Ulva Oligosaccharides via Enzymatic Hydrolysis: A Review on Ulvan Lyase." Foods 13, no. 17 (2024): 2820. http://dx.doi.org/10.3390/foods13172820.

Full text

Abstract:

Ulvan is a water-soluble sulfated polysaccharide extracted from the green algae cell wall. Compared with polysaccharides, oligosaccharides have drawn increasing attention in various industries due to their enhanced biocompatibility and solubility. Ulvan lyase degrades polysaccharides into low molecular weight oligosaccharides through the β-elimination mechanism. The elucidation of the structure, catalytic mechanism, and molecular modification of ulvan lyase will be helpful to obtain high value-added products from marine biomass resources, as well as reduce environmental pollution caused by the

APA, Harvard, Vancouver, ISO, and other styles

16

Mubayyinah, Lailatul, Alvira Rizqi Rahmadia, Dinar Ayu Sekar Pawening, Lathifah Mudita, Sharyn Ciptadi Kodja, and Ekwan Nova Wiratno. "COMPARATIVE ANALYSIS OF FLAVONOID AND TANNIN EXTRACTION FROM ULVA LACTUCA USING MACERATION AND ULTRASONIC-ASSISTED (UAE) TECHNIQUES FOR ANTIBACTERIAL ACTIVITY." Jurnal Perikanan Unram 14, no. 4 (2024): 2015–25. https://doi.org/10.29303/jp.v14i4.1218.

Full text

Abstract:

Streptococcus agalactiae and Streptococcus iniae bacteria can cause mass mortality in farmed fish, resulting in negative production and economic impacts. The use of conventional antibiotics in the management of these diseases has led to resistance problems and environmental pollution. Ulva lactuca algae are known to contain bioactive compounds such as triterpenoids, flavonoids, and saponins that have antibacterial potential against Streptococcus. This study aims to evaluate the potential of Ulva lactuca algae extract as an alternative treatment for streptococcosis in Gourami (Osphronemus goura

APA, Harvard, Vancouver, ISO, and other styles

17

Borsali, S., A. Baaloudj, and A. Kerfouf. "Biochemical study of Ulva lactuca and Cystoseira stricta from Mostaganem coastline (Western Algeria)." Ukrainian Journal of Ecology 10, no. 4 (2020): 116–21. http://dx.doi.org/10.15421/2020_177.

Full text

Abstract:

Our research includes biochemical study, evaluation of anti-oxidant activities and heavy metals contamination in Ulva lactuca and Cystoseira stricta collected at the site of Sidi El Adjel (Mostaganem). We registered a total phenol content in Ulva lactuca and Cystoseira stricta were 0.383 5.43 mg EAG/g MS respectively. The polyphenols contamination caused the significant antioxidant effects on DPPH. The yield of crude extract for petroleum ether were 2 and 8.8% in Ulva lactuca sp and Cystoceira stricta, whereas it were 7.9 and 2.07% for the methanol respectively. We noted the ability of studied

APA, Harvard, Vancouver, ISO, and other styles

18

BIRIS-DORHOI, Elena Suzana, Delia MICHIU, Ioana TALOS, and Maria TOFANA. "ALGAE AS FUNCTIONAL FOOD: REVIEW." Hop and Medicinal Plants 27, no. 1-2 (2019): 16–27. https://doi.org/10.15835/hpm.v27i1-2.13581.

Full text

Abstract:

The main cultivated and consumed varieties are Ulva lactuca, Undaria pinnatifida and Porphyra yezoensis. Edible algae are also a type of low-calorie and low-fat food. Extracts from the most common edible seaweeds contained polyphenol content. Ulva has been found to have low polyphenol content compared to species of red and brown algae. Marine algae present a good antioxidant activity. Macroalgae have anti-inflammatory, anti-cancer (Undaria pinnatifida) and anti-obesity effect amongst many others. These characteristics coupled with many other make them a valuable ingredient in food products or

APA, Harvard, Vancouver, ISO, and other styles

19

Afanasyev, D. F., and Sh R. Abdullin. "On a new vegetation association of the Black Sea pseudolittoral zone." Vegetation of Russia, no. 23 (2013): 3–8. http://dx.doi.org/10.31111/vegrus/2013.23.3.

Full text

Abstract:

A new association of macrophytic algae Ulvo compressae–Cladophoretum albidae of the Russian Black Sea pseudolittoral zone is described. The association seems to be related to the alliance Ralfsion verrucosae Giaccone 1993. The diagnostic species of the association are Ulva compressa and Cladophora albida. Two variants of the association have been described. Diagnoses of the association and its variants are given.

APA, Harvard, Vancouver, ISO, and other styles

20

Lundberg, B., and Y. Lipkin. "Seasonal, Grazing Site and Fish Size Effects on Patterns of Algal Consumption by the Herbivorous Fish, Siganus rivulatus, at Mikhmoret (Mediterranean, Israel)." Water Science and Technology 27, no. 7-8 (1993): 413–19. http://dx.doi.org/10.2166/wst.1993.0577.

Full text

Abstract:

Siqanus rivulatus, a successful herbivorous immigrant fish from the Red Sea, consumes along the Israeli east Mediterranean coast a wide variety of algae. Only four of them composed about a half of the bulk of its food, and only twelve, about 80% of it. Seasonal changes in quantitative representation of different algae in the food followed several patterns. Most algae were taken throughout the year. Proportions in the food of some algae fluctuated only slightly during the year, proportions of others were very great during short periods and much smaller during the rest of the year. Polvsiphonia

APA, Harvard, Vancouver, ISO, and other styles

21

Tran, Vy Ha Nguyen, Thuan Thi Nguyen, Hang Thi Thuy Cao, et al. "Sulfated polysaccharides of Green Algae: Chemical Composition and Antioxidant Activity <i>in vitro</i> of Fractionated Ulvans from <i>Ulva lactuca</i> and <i>Ulva papenfussii</i>." Vietnam Journal of Marine Science and Technology 25, no. 2 (2025): 207–20. https://doi.org/10.15625/1859-3097/22735.

Full text

Abstract:

The study evaluated the chemical composition, molecular weight, and antioxidant activity of ulvan extracted from Ulva papenfussii and Ulva lactuca. The results revealed distinct differences in the monosaccharide composition, sulfate content, and uronic acid levels between ulvans from both species, with ulvan from U. papenfussii exhibiting higher levels of iduronic acid and sulfate (16.39 ± 0.45 %w/w and 28.46 + 3.63 %w/w). Ulvan was fractionated using anion exchange chromatography (DEAE) based on charge differences, yielding three main fractions from each species. This study is the first to an

APA, Harvard, Vancouver, ISO, and other styles

22

Marin, Oana Alina, and Adrian Filimon. "Ulva species from the Romanian Black Sea Coast – between green blooms and nature’s contribution to people." Cercetări Marine - Recherches Marines 54 (October 30, 2024): 90–103. http://dx.doi.org/10.55268/cm.2024.54.90.

Full text

Abstract:

Ulva species have a worldwide distribution and remarkable ability to develop under various conditions, being considered an important natural resource that is under-exploited along the Romanian Black Sea coast. These green algae, involved in green tides observed worldwide, have also a remarkable potential as prolific sources of bioactive compounds with potential health benefits and a wide range of applications in food, feed, pharmaceutical, nutraceutical, cosmetic, or biofuel industries. The study aims to analyze the quantitative variability of Ulva spp. during 2019 - 2023, in order to highligh

APA, Harvard, Vancouver, ISO, and other styles

23

Berik, Nermin, Ekrem Cem Çankırılıgil, Hasan Basri Ormancı, and Akın Yıldız. "Evaluation of sea lettuce (Ulva rigida) collected from Çanakkale Strait as salad and soup by determining the seasonal nutritional content." Food and Health 8, no. 2 (2022): 127–40. http://dx.doi.org/10.3153/fh22013.

Full text

Abstract:

The main aims of this study are determining seasonal chemical composition of green seaweed and evaluating usage of a food source with different processing techniques. For this purpose, Ulva rigida were collected from Çanakkale Strait, Türkiye and amino acid, fatty acid and proximate composition were determined seasonally in both fresh and dried samples. According to results; Ulva rigida contains high protein and amino acids content whereas it has low fat content differs in the range of 0.46-0.85 % in fresh samples and 1.81-4.53 % in dried ones. In the following, the obtained algae samples in t

APA, Harvard, Vancouver, ISO, and other styles

24

Xia, Jing, Peimin He, Jinlin Liu, et al. "Comparing Complete Mitochondrion Genome of Bloom-forming Macroalgae from the Southern Yellow Sea, China." E3S Web of Conferences 233 (2021): 02037. http://dx.doi.org/10.1051/e3sconf/202123302037.

Full text

Abstract:

The green tide in the Southern Yellow Sea which has been erupting continuously for 14 years. Dominant species of the free-floating Ulva in the early stage of macroalgae bloom were Ulva compressa, Ulva flexuosa, Ulva prolifera, and Ulva linza along the coast of Jiangsu Province. In the present study, we carried out comparative studies on complete mitochondrion genomes of four kinds of bloom-forming green algae, and provided standard morphological characteristic pictures of these Ulva species. The maximum likelihood phylogenetic analysis showed that U. linza is the closest sister species of U. p

APA, Harvard, Vancouver, ISO, and other styles

25

Negreanu-Pirjol, T., R. Sirbu, and M. Mirea. "Antioxidant Activity Correlated with Chlorophyll Pigments and Magnesium Content of Some Green Seaweeds." European Journal of Medicine and Natural Sciences 3, no. 1 (2020): 107. http://dx.doi.org/10.26417/393qel95l.

Full text

Abstract:

The complex valorification of seaweed biomass represents a highly important resource for the pharmaceutical and dermo-cosmetic industry, supplying raw material for the extraction of bioactive substances such as, polysaccharides, vitamins, sterols, aminoacids, polyphenols and minerals. Marine algae represent an indefatigability resource of therapeutic active principles for diseases treatment of magnesium deficiency. The presence of chlorophyll pigments in the green algae confirms the magnesium existence, as central element in molecular structures. The main green algae, as Ulva lactuca and Enter

APA, Harvard, Vancouver, ISO, and other styles

26

Ramkumar, Ashwini, and Sridar Jayavel. "Isolation of Fatty Acid Constituents from Ulva Fasciata and its Anticancer Activity on HeLa Cells." Shanlax International Journal of Arts, Science and Humanities 10, no. 2 (2022): 28–37. http://dx.doi.org/10.34293/sijash.v10i2.4999.

Full text

Abstract:

Macroalgae are found as a great source of biologically active compounds important in pharmaceutical industry. In this study, 8 algal samples namely Ulvafasciata (Green algae), Padinagymnosphora, Sargassamwightii, and Turbinariaornate (brown algae), Gracilariacorticata, Halimedamacrolopa, Halymeniadilatata, and Gracilariacrassa (red algae) were collected and identified its fatty acid compositions. U. fasciatawhich showed high fatty acid constituents was further analysed for its anticancer activity against Hela cells by MTT assay and AO/EtBr staining. The results confirmed that U. fasciata could

APA, Harvard, Vancouver, ISO, and other styles

27

Annepu, Ravi Kumar, and Subhashini Devi Prattipati. "Anticancer and antimicrobial activity of three different seaweed extracts." Research Journal of Biotechnology 18, no. 7 (2023): 75–80. http://dx.doi.org/10.25303/1807rjbt075080.

Full text

Abstract:

In the present study, antimicrobial and in vitro cytotoxic activities of three seaweeds Gracilaria corticata (red algae), Ulva lactuca (green algae) and Sargassum ilicifolium (brown algae) were reported. Among the three algal extracts screened for antibacterial activity, the acetone extract of all the three algae showed moderate antibacterial activity on Gram positive bacteria S. aureus and B. subtilis and Gram negative bacteria E. coli and P. aeruginosa but no activity was observed on M. luteus and S. typhi. The cytotoxic activity of three seaweeds was studied using MTT assay on MCF-7 cell li

APA, Harvard, Vancouver, ISO, and other styles

28

Piotrowicz, Zuzanna, Łukasz Tabisz, Bogusława Łęska, Beata Messyasz, and Radosław Pankiewicz. "Comparison of the Antioxidant Properties of Green Macroalgae from Diverse European Water Habitats by Use of Several Semi-Quantitative Assays." Molecules 27, no. 12 (2022): 3812. http://dx.doi.org/10.3390/molecules27123812.

Full text

Abstract:

Nowadays, algae are becoming more and more popular as a food group rich in nutrients, cosmetic raw materials full of antioxidants or valuable dietary supplements. They are of interest for the industry because they are found almost all over the world, in all climatic zones, both in fresh and salt waters. The aim of this study was to take a broad look at green algae (Chlorophyta) and to show how large the variability of the content of active compounds may depend on the species and the place and time of sample collection. Particular attention was paid to compounds with antioxidant activity, whose

APA, Harvard, Vancouver, ISO, and other styles

29

Permatasari, N. U., R. A. Arfah, M. Khaerunnisa, Z. Zainuddin, and S. V. O. Situmorang. "OPTIMIZATION AND CHARACTERIZATION OF SULPHATE BIOPOLYSACCHARIDE PRODUCTION FROM EDIBLE GREEN ALGAE Ulva Lactuca USING SURFACE RESPONSE METHOD." RASAYAN Journal of Chemistry 17, no. 04 (2024): 1717–26. http://dx.doi.org/10.31788/rjc.2024.1748963.

Full text

Abstract:

This research focuses on optimizing the production of sulfate biopolysaccharides from the edible green algae Ulva lactuca using surface response analysis. The objective was to identify the ideal conditions for extracting Ulvan, a sulfated polysaccharide from Ulvophyceae, by analyzing critical process factors-namely, temperature, HCl concentration, and heating duration. The study found the best extraction conditions at a temperature of 73°C, HCl concentration of 0.3 M, and heating duration of 4 hours, resulting in a 25.07% yield of Ulvan. The extracted Ulvan had a total sugar content of 0.1767

APA, Harvard, Vancouver, ISO, and other styles

30

Prakash, R., and A. D. Jokhan. "Photosynthetic rate and biochemical composition of green algae Ulva flexuosa (Wulfen) J. Agardh as potential indicators of environmental stress in the intertidal zones." South Pacific Journal of Natural and Applied Sciences 30, no. 1 (2012): 44. http://dx.doi.org/10.1071/sp12004.

Full text

Abstract:

Photosynthetic rate and biochemical composition total chlorophyll (TC), total soluble protein (TSP) and total soluble carbohydrates (TSC) were determined for Ulva flexuosa, a green marine algae collected from Nasese, Lami and Laucala Beach areas in Suva, Fiji Islands. Ulva flexuosa from Laucala Beach area had the highest photosynthetic rates, TC and TSP content, while algae from Nasese area had the highest amount of TSC. Algae from Lami area had the lowest amount of photosynthesis rate, TC, TSP and TSC. High photosynthetic rate and biochemical content were mainly due to the presence of high le

APA, Harvard, Vancouver, ISO, and other styles

31

Tran, Vy Ha Nguyen, Maria Dalgaard Mikkelsen, Hai Bang Truong, et al. "Structural Characterization and Cytotoxic Activity Evaluation of Ulvan Polysaccharides Extracted from the Green Algae Ulva papenfussii." Marine Drugs 21, no. 11 (2023): 556. http://dx.doi.org/10.3390/md21110556.

Full text

Abstract:

Ulvan, a sulfated heteropolysaccharide with structural and functional properties of interest for various uses, was extracted from the green seaweed Ulva papenfussii. U. papenfussii is an unexplored Ulva species found in the South China Sea along the central coast of Vietnam. Based on dry weight, the ulvan yield was ~15% (w/w) and the ulvan had a sulfate content of 13.4 wt%. The compositional constitution encompassed L-Rhamnose (Rhap), D-Xylose (Xylp), D-Glucuronic acid (GlcAp), L-Iduronic acid (IdoAp), D-Galactose (Galp), and D-Glucose (Glcp) with a molar ratio of 1:0.19:0.35:0.52:0.05:0.11, r

APA, Harvard, Vancouver, ISO, and other styles

32

García-Casal, Maria N., José Ramírez, Irene Leets, Ana C. Pereira, and Maria F. Quiroga. "Antioxidant capacity, polyphenol content and iron bioavailability from algae (Ulva sp., Sargassum sp. and Porphyra sp.) in human subjects." British Journal of Nutrition 101, no. 1 (2008): 79–85. http://dx.doi.org/10.1017/s0007114508994757.

Full text

Abstract:

Marine algae are easily produced and are good sources of Fe. If this Fe is bioavailable, algae consumption could help to combat Fe deficiency and anaemia worldwide. The objective of the present study was to evaluate Fe bioavailability, polyphenol content and antioxidant capacity from three species of marine algae distributed worldwide. A total of eighty-three subjects received maize- or wheat-based meals containing marine algae (Ulva sp., Sargassum sp. and Porphyra sp.) in different proportions (2·5, 5·0 and 7·5 g) added to the water to prepare the dough. All meals administered contained radio

APA, Harvard, Vancouver, ISO, and other styles

33

WESAM, FA MOHAMED, and M. ADRESS HASAN HAMAD. "Study the accumulation of minerals and heavy metals in Ulva algae, Cladophora, Polysiphonia and Laurencia algae samples at eastern north region of Libya coast." GSC Biological and Pharmaceutical Sciences 23, no. 3 (2023): 147–52. https://doi.org/10.5281/zenodo.8260375.

Full text

Abstract:

Different minerals including ( Na<sup>+</sup>, K<sup>+</sup> and Ca<sup>++</sup>) in addition to ( iron and copper) were determined in different algae samples collected from some region at Al –Gabal Al –Khder coast region (Libya). The algae samples including (<em>Ulva algae, Cladophora algae, Polysiphonia algae and Laurencia algae</em>).The mineral contents were measured by Flamephotometer, while the (iron and copper) levels were estimated by spectrophotometeric method. The results showed variations between the contents of the studied algae samples. Where the results showed th

APA, Harvard, Vancouver, ISO, and other styles

34

Soufi, Jaouad, Yahya El Hammoudani, Khadija Haboubi, Issam Hanafi, and Fouad Dimane. "Ulva spp (Ulva intestinalis, U. fasciata, U. lactuca, and U. rigida) composition and abiotic environmental factors." BIO Web of Conferences 109 (2024): 01012. http://dx.doi.org/10.1051/bioconf/202410901012.

Full text

Abstract:

Seaweed, including various species of Ulva (e.g., Ulva intestinalis, U. fasciata, U. lactuca, and U. rigida), is essential for maintaining the balance of aquatic ecosystems. These algae are found worldwide and have a high growth rate in diverse habitats. This article analyzes the composition of these Ulva spp (including carbohydrates, proteins, lipids, and ash). It also investigates the environmental factors that affect their growth and composition, such as pH, temperature, water depth, salinity, and nutrient availability. Understanding the variations in composition and environmental influence

APA, Harvard, Vancouver, ISO, and other styles

35

Pattirane, Chrisoetanto P., Aripudin, Asep Suryana, and Herlin Kawati. "Utilization Different Macroalgae to Enhance Growth and Survival Rate of Juvenile Abalone, Haliotis squamata." Jurnal Moluska Indonesia 7, no. 2 (2023): 88–96. https://doi.org/10.54115/jmi.v7i2.92.

Full text

Abstract:

As a herbivorous organism, abalone is highly dependent on the availability of macroalgae as its main feed. The types of macroalgae commonly used as abalone feed are Ulva sp (green algae) and Gracilaria sp (red algae). The use of brown algae is still very rare so further research needs to be done. This research was conducted at the Superior Shrimp and fishery production center (BPIU2K) in Bali. The rearing tank used is a fiber tub measuring 200x100x60 cm3. The rearing container used is a plastic basket measuring 40x30x10 cm3. The baskets used were nine pieces, including three baskets each for G

APA, Harvard, Vancouver, ISO, and other styles

36

Llano, Tamara, Carlos Arce, Lien E. Gallart, Ana Perales, and Alberto Coz. "Techno-Economic Analysis of Macroalgae Biorefineries: A Comparison between Ethanol and Butanol Facilities." Fermentation 9, no. 4 (2023): 340. http://dx.doi.org/10.3390/fermentation9040340.

Full text

Abstract:

Ulva rigida seaweed is constituted by ulvan, which is a sulfated polysaccharide with uses in a wide variety of applications. After the ulvan-oriented extraction process, a crystalline and recalcitrant residue, the so-called pulp, appears. In this work, this residue was valorized through a multiple-stage process. The total processing of the algae consists of hot water extraction, acid hydrolysis, ABE fermentation, and distillation in order to obtain not only ulvan but also butanol and bioethanol to be used as biofuels by simulating two third-generation algae-based biorefineries in Aspen Plus v1

APA, Harvard, Vancouver, ISO, and other styles

37

Pádua, Márcia de, Paulo Sérgio Growoski Fontoura, and Alvaro Luiz Mathias. "Chemical composition of Ulvaria oxysperma (Kützing) bliding, Ulva lactuca (Linnaeus) and Ulva fascita (Delile)." Brazilian Archives of Biology and Technology 47, no. 1 (2004): 49–55. http://dx.doi.org/10.1590/s1516-89132004000100007.

Full text

Abstract:

Chemical composition of three species of Chlorophyta, Ulva lactuca, Ulva fasciata and Ulvaria oxysperma, was determined. Ulvaria oxysperma showed humidity (16-20%), ash (17-31% dry-base), proteins (6-10%db), lipids (0.5-3.2%db), fibers (3-12%db) and carbohydrates (46-72%db) which corresponded to 192-270 kcal.100g-1 (wet-base). U lactuca (15-18%db) and U fasciata (13-16%db) revealed grades slightly higher for proteins, but with similar energetic contents (250-272 and 225-239 kcal.100g-1), respectively. Natural blades of U lactuca and of U fasciata were more rigid than blades of U oxysperma. Oth

APA, Harvard, Vancouver, ISO, and other styles

38

Wang, Chang-Yun, Lei Han, Kai Kang, et al. "Secondary metabolites from green algae Ulva pertusa." Chemistry of Natural Compounds 46, no. 5 (2010): 828–30. http://dx.doi.org/10.1007/s10600-010-9760-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

ELhariri, Khadija S., Mohamed S. Hamouda, and Mariam M. ELmughrbe. "Determining Pollution Level for the Marine Environment Using the Pollution Load Index." مجلة علوم البحار والتقنيات البيئية 8, no. 1 (2022): 25–31. http://dx.doi.org/10.59743/jmset.v8i1.5.

Full text

Abstract:

Monitoring means Monitoring, Data, Indicators, Assessment, and Knowledge. Based on this context the Pollution Load Index (PLI), has been applied using the data obtained from the analysis of water and algae. Algae and Posidonia oceanic were considered as good candidates among the different species selected by the United Nation Environmental Program (UNEP). The concentrations of the metals (Zn, Pb, Cd, and Cu) were measured in two marine green algae namely Ulva sp and Enteromorpha sp, that were collected from four Sites, during the winter and summer seasons. The results of the PLI calculated sho

APA, Harvard, Vancouver, ISO, and other styles

40

Nechev, Jordan T., Svetlana V. Khotimchenko, Albena P. Ivanova, et al. "Effect Of Diesel Fuel Pollution On The Lipid Composition Of Some Wide-Spread Black Sea Algae And Invertebrates." Zeitschrift für Naturforschung C 57, no. 3-4 (2002): 1–5. http://dx.doi.org/10.1515/znc-2002-3-401.

Full text

Abstract:

Two green algae (Ulva rigida and Cladophora coelothrix), the mussel Mytilus galloprovincialis and the snail Rapana thomasiana from the Bulgarian Black Sea shore have been treated with diesel fuel (100 mg l-1) in an aquarium with sea-water for three days. The lipids and their fatty acid changes have been examined. Significant changes have been observed mainly in the polar lipids and in the saturation of the fatty acids. These changes appeared to be bigger in the evolutionary less advanced species from both groups of marine organisms D algae and invertebrates (Ulva rigida and Mytilus galloprovin

APA, Harvard, Vancouver, ISO, and other styles

41

Balasubramanian, R., and S. Ravi. "Green Synthesised Zinc Oxide Nanoparticles from Ulva Fasciata Algae Extract for Antibacterial and Supercapacitor Application." International Journal of Membrane Science and Technology 10, no. 3 (2023): 3089–99. http://dx.doi.org/10.15379/ijmst.v10i3.3024.

Full text

Abstract:

The present study aims to identify the green synthesized zinc oxide (ZnO) nanoparticles (NPs) from Ulva fasciata algae extract. The prepared ZnO NPs are characterized through XRD, FTIR, UV-Vis spectroscopy, SEM, TEM, EDX, antibacterial activity and electrochemical analysis. The XRD spectrum exposes the hexagonal structure. The FTIR spectrum reveals the functional group of ZnO NPs. The optical analysis gives the band gap values of ZnO at different concentrations of ulva fasciata algae extract. The antibacterial activities were tested S. aureus and E. coli. The CV curve exhibit a high specific c

APA, Harvard, Vancouver, ISO, and other styles

42

Galal Shams El-Din, Nihal, Nayrah A. Shaltout, Mustafa A. Ghazal, Alaa E. Ali, and Doha M. Beltagy. "PHYSICAL PRETREATMENT OF ULVA FASCIATA FOR ENHANCINGBIODIESEL PRODUCTION AND QUALITY." International Journal of Advanced Research 9, no. 03 (2021): 347–63. http://dx.doi.org/10.21474/ijar01/12591.

Full text

Abstract:

The green algae Ulva faciata was subjected to different physical pretreatments comprising thermal and mechanical techniques at different experimental conditions to state the most appropriate method of cell disruption for increasing the quantity of the extracted lipid and hence improve the quality of the produced biodiesel with low cost. Thermal pretreatment was autoclaving of either wet or dry algal biomass, while mechanical pretreatments include microwave and ultrasonication at different time intervals. The control was the alga without pretreatment extracted at optimum conditions: 60 min, 55o

APA, Harvard, Vancouver, ISO, and other styles

43

Gong, Jeong-Ae, Tae-Jun Han, and Yeong-Seok Han. "RHYTHMIC PHENOMENA IN THE GREEN ALGA ULVA PERTUSA KJELLMAN." ALGAE 17, no. 4 (2002): 259–65. http://dx.doi.org/10.4490/algae.2002.17.4.259.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Grillo, Giorgio, Silvia Tabasso, Roberto Solarino, et al. "From Seaweeds to Cosmeceutics: A Multidisciplinar Approach." Sustainability 13, no. 23 (2021): 13443. http://dx.doi.org/10.3390/su132313443.

Full text

Abstract:

Macroalgae are widespread on the coasts of all the globe and lead to a negative ecological impact, requiring expensive remediations. Therefore, the valorization of invasive seaweed as a renewable source of bioactive products could represent a valid solution. In this context, three algal biomasses, belonging to brown, green, and red families (Sargassum muticum, Ulva lactuca, Solieria filiformis), collected in the venetian Laguna, were investigated as a source of active compounds for the formulation of cosmeceutics. Microwave (MW) and ultrasound (US) were applied to enhance the algae extraction

APA, Harvard, Vancouver, ISO, and other styles

45

Asnaoui, H., A. Laaziri, and M. Khalis. "Study of the kinetics and the adsorption isotherm of cadmium(II) from aqueous solution using green algae (Ulva lactuca) biomass." Water Science and Technology 72, no. 9 (2015): 1505–15. http://dx.doi.org/10.2166/wst.2015.359.

Full text

Abstract:

Batch experiments were conducted to study the adsorption of hazardous cadmium onto low-cost algae biomass in aqueous solution with respect to concentration of adsorbate, adsorbent dosage, contact time, solution pH and temperature. Langmuir and Freundlich adsorption models were applied to describe the equilibrium isotherms and the isotherm constants were determined. The activation energy of adsorption was also evaluated for the adsorption of cadmium onto Ulva lactuca biomass. Experimental data were tested in terms of biosorption kinetics using pseudo-first-order and pseudo-second-order kinetic

APA, Harvard, Vancouver, ISO, and other styles

46

Burke, Catherine, Staffan Kjelleberg, and Torsten Thomas. "Selective Extraction of Bacterial DNA from the Surfaces of Macroalgae." Applied and Environmental Microbiology 75, no. 1 (2008): 252–56. http://dx.doi.org/10.1128/aem.01630-08.

Full text

Abstract:

ABSTRACT A novel method has been developed for the selective extraction of DNA from surface-associated bacterial communities from the two model marine benthic algae Ulva australis and Delisea pulchra. The extracted DNA had no detectable contamination with host DNA, was recovered in high yield and quality, and was representative of the bacterial community on the algal surfaces. The DNA is suitable for a variety of subsequent applications, including the construction of large-insert clone libraries and metagenomic sequencing.

APA, Harvard, Vancouver, ISO, and other styles

47

Villas Bôas, Alexandre Bigio, and Marcia A. de O. Figueiredo. "Are anti-fouling effects in coralline algae species specific?" Brazilian Journal of Oceanography 52, no. 1 (2004): 11–18. http://dx.doi.org/10.1590/s1679-87592004000100002.

Full text

Abstract:

The crustose coralline algae are susceptible to be covered by other algae, which in turn can be affected by anti-fouling effects. In this study the hypothesis tested was that these algae can inhibit the growth of epiphytes in a species specific way. In the laboratory, propagules of Sargassum furcatum and Ulva fasciata were liberated and cultivated on pieces of coralline algae and slide covers (controls) and their survival and growth were compared. Spongites and Hydrolithon significantly inhibited the growth of U. fasciata but not Sargassum. In the field, pieces of three species of live and dea

APA, Harvard, Vancouver, ISO, and other styles

48

Praveen, A., and C. Kannan. "Studies on Anti-Fungal Activity of Different Macro Algal Extracts against Soil Borne Pathogen Sclerotium rolfsii Sacc." International Journal of Plant & Soil Science 35, no. 19 (2023): 1083–90. http://dx.doi.org/10.9734/ijpss/2023/v35i193646.

Full text

Abstract:

Management of soil-borne plant pathogens is one of the single greatest challenges facing modern agriculture worldwide. Seaweeds are considered as a source of bioactive compounds as they are able to produce a great variety of secondary metabolites characterized by a broad spectrum of biological activities. The seaweeds derived compounds showing broad range of biological activities such as antiviral, antibacterial and antifungal activities. The antimicrobial activity of macro algal extracts is generally analysed using various organic solvents which always present higher efficiency in extracting

APA, Harvard, Vancouver, ISO, and other styles

49

Tian, Wei, Juan Wang, Fengli Zhang, et al. "The Detection of Green Tide Biomass by Remote Sensing Images and In Situ Measurement in the Yellow Sea of China." Remote Sensing 15, no. 14 (2023): 3625. http://dx.doi.org/10.3390/rs15143625.

Full text

Abstract:

The world’s largest macroalgae bloom (also known as green tide) has been reported since the 29th Olympic Games in 2008, which is verified as the fast reproduction of floating green macroalgae (Ulva prolifera). It is helpful to assess the biomass of macroalgae for the government of marine environment protection. In this study, the synchronization cruise experiment was firstly introduced, which aimed to investigate the biomass evaluation of Ulva prolifera in the Yellow Sea of China. The Floating Algae Index by Polarimetric SAR image (FAIPS) was then proposed. Finally, the floating algae biomass

APA, Harvard, Vancouver, ISO, and other styles

50

Hesham, Amin F., El-Sayed B. Abo El-Khair, Elsebaie Essam Mohamed, and Metwaly R. Huda. "Quality of catfish luncheon supplemented with marine algae (Ulva lactuca and Nannocholoropsis oculata) during frozen storage." Annals of the University Dunarea de Jos of Galati. Fascicle VI - Food Technology 48, no. 2 (2024): 27–44. https://doi.org/10.35219/foodtechnology.2024.2.02.

Full text

Abstract:

This study investigated the composition of marine algae (Ulva lactuca and Nannochloropsis oculata) and evaluated the effect of using their powders instead of wheat flour, as a good source of marine oil, fiber, chlorophyll, and gelling and thickening agents, on the quality of catfish luncheon product during three months of frozen storage. Addition of 10% of U. lactuca and. Nannochloropsis oculata powders to catfish luncheon decreased protein slightly (28.43 and 28.36%, respectively) while fat and caloric value were increased (P ≤ 0.05) with the addition of Nannochloropsis oculata (43.3% and 575

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!