38th BARCELONA International Conference on Chemical, Biological and Environmental Sciences (BCBES 2024)

  • 24-26 Apr 2024
  • Hotel HCC St. Moritz, Barcelona, Spain(Hybrid)


The 38th BARCELONA International Conference on Chemical, Biological and Environmental Sciences (BCBES 2024) covers topics such as:

  • Agricultural biotechnology & developing countries
  • Agricultural Biotechnology
  • Animal biotechnology
  • Agricultural Biotechnology regulations, rules & perceptions
  • Beverage and Fermentation Technology
  • Application of artificial intelligence in food engineering research and in industry
  • Biomedical Computational drug discovery
  • Biocatalysis, organocatalysis and nanobiotechnology
  • Biomimetic and self-assembled materials
  • Bio-MEMS and microbioreactors
  • Breeding and genetics
  • Biosensors and molecular diagnostics
  • Cellular and molecular biology
  • Cell and tissue engineering
  • Control and system engineering for food industry
  • Composition of foods
  • Diet-related diseases
  • Crop breeding, genetics & genomics
  • Drug screning and pharmaceutical synthesis
  • Domestic animal breeding, genomics & biotechnology
  • Environmental Biotechnology
  • Electronics and instrumentation in food industry
  • Air pollution and its effects on ecosystems
  • Enzyme Engineering
  • Cognitive Neuroscience of Memory and Cognition
  • Coasts and Seas
  • Development Planning and Policy
  • Development and environment
  • Education on Energy and Environment
  • Disasters Management
  • Environmental impact assessment
  • Environmental economics - sustainable services and systems
  • Environmental performance of enterprise
  • Environmental law - environmental policies
  • Environmental risk
  • Environmental psychology
  • Fisheries, Animal and Veterinary Sciences
  • Environmental Science and Engineering
  • Health aspects of waste water and solid waste management
  • Food Science and Technology
  • Hydrological modification
  • Horticulture
  • Mathematical Biology
  • Marine Biology and Sciences
  • Natural resources management
  • Medical and Pharmaceutical Engineering
  • Pollution control
  • Nuclear Energy and Environmental Protection
  • Polymer-based targeting techniques and nanotechnology
  • Pollution control technologies
  • Post harvest Technology
  • Positive Psychology
  • Solid waste management
  • Soil and agricultural issues
  • Spatial Cognition
  • Solid waste management and recycling
  • Statistical inference, and the learning theory
  • Sport Psychology
  • Strategic Management
  • Strategic Management
  • Stress Management
  • Strategic Management Policy
  • Sustainability indicator
  • Supply Change Management
  • Systems Management
  • Sustainable Process Model
  • Understanding Explanatory Coherence
  • Systems Thinking
  • Waste water management and aquaculture
  • Urban design and cultural heritage
  • Water resources management and water quality
  • Water Engineering

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Please, check "BARCELONA International Conference on Chemical, Biological and Environmental Sciences (BCBES)" official website for possible changes, before making any traveling arrangements

Event Categories

Government & Global Issues: Environment
Industry: Chemicals
Science: Biochemistry, Chemistry, Ecology, Environmental sciences, Life Sciences & Biology

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P-phenylenediamine (PPD) has been determined in henna and hair dyes of black, brown, green, and blonde color of different origins, the method is based on the oxidation a 2,7- dihydroxy naphthalene reagent in aqueous medium then couple with the PPD in basic medium. The formed product is blue, stable, and water soluble that is measured at 582nm.The linearity is followed from 1.02 to38 µg/mL, i.e. from 0.1 x10-4 to 3.5 x10-4 molar with high sensitivity of 0.36771x104 L.mol-1.cm-1. The calculated LOD and LOQ is 0.052 and 0.176 µg/mL respectively. The method showed good applicability and validated with standard addition method with average recovery 99% and average standard deviation of 1.18%. The content of PPD in hair dye products ranged from2.1 to 25 µg/ml i.e. 0.0525 to 0.625 mg PPD /0.2 g of the product, The highest level of PPD was found in henna.