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    Wyświetlanie 1-3 z 3
    Tytuł:
    Equilibrium Moisture Content Importance in Safe Maritime Transport of Black Tea
    Autorzy:
    Dmowski, P.
    Ruszkowska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/117591.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    maritime transport
    black tea
    maritime transport of black tea
    carogo transportation
    equilibrium moisture content
    moisture content
    moisture
    transport of tea
    Opis:
    In sea transport, a very important thing is an assignment of cargo to a particular class of storage climate conditions and it is carried out on the basis of the requirements that cargo places upon its storage atmosphere. The water content of black tea must not fall below 2%, as the product otherwise becomes haylike and its essential oils readily volatilize, while on the other hand, it must not exceed 9% as it then has a tendency to grow mould and become musty. Therefore, tea requires particular temperature, humidity/moisture and possibly ventilation conditions. In this context, tea is a hygroscopic material that has the ability to absorb or desorb water in response to temperature and relative humidity of the atmosphere surrounding it. The moisture content of tea is one of the most important variables affecting its chemical and sensory properties. Therefore, to explore and predict the behaviour during transport of tea, its equilibrium moisture content must be determined for a range of transport temperatures and relative humidities. The present paper focuses on the evaluate the hygroscopic properties of tea from Rwanda with different degree of fragmentation based on isotherms of water vapour sorption and characteristics selected parameters of the surface microstructure determining transport conditions and therefor microbiological stability of teas.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 2; 399-404
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Selected quality characteristics of sea salt important during transport and storage
    Autorzy:
    Śmiechowska, M.
    Ruszkowska, M.
    Olender, O.
    Powiązania:
    https://bibliotekanauki.pl/articles/2063959.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    cargo transportation
    cargo transportation by sea
    sea salt
    sea salt transport
    sea salt storage
    salt
    quality characteristics
    Opis:
    Salt is obtained in various regions of the world and using differing technologies. The origin of the salt and its production methods influence its composition, properties and application possibilities. In recent years, sea salt has attracted a lot of interest, as it is commonly believed that it is richer in minerals than pure evaporated salt. One of the oldest methods of extracting edible salt in the world is the evaporation of seawater. Salinas are found in coastal zones of seas and oceans around the world. The salt obtained in the salin is transported to its destination by various means of transport, including sea transport. Taking into account the classification of sea cargo, salt is classified as solid mass cargo, and due to the physicochemical properties of salt, the transport of this product by sea requires security. The aim of this study was to present selected quality parameters of sea salt that are important in its transport and storage. Parameters relevant from the point of view of transport, storage, technology and processing, which are important in shaping the quality of sea salts were compared in salts obtained in various European salinas vs. Himalayan salt. These parameters included water activity, degree of granulation and discharge angle and embankment angle. The paper also presents the characteristics of sea salts from microscopic analysis and an assessment of the correct labeling of the product, which is important for the consumer of the packaged product. In land transport, not only sea salt is transported in bulk, but also the product in commercial packaging, most often weighing 1 kg.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 3; 659--665
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hygroscopic properties of green coffee transported by sea
    Autorzy:
    Ruszkowska, M.
    Dmowski, P.
    Urbanowicz, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2063958.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    cargo transportation
    green coffee
    cargo transportation by sea
    sea transportation
    hygroscopic properties
    coffee
    Opis:
    The aim of research was to evaluate the hygroscopic properties of green coffee beans determining its quality during sea transportation. The research material consisted of seven samples of unroasted bean coffee from different countries of origin (Kenya, India, Ethiopia, Columbia and Guatemala) obtained directly from the coffee producer. The water content of green coffee must not exceed 12% as it then has a tendency to grow mould and become musty. Coffee beans require particular temperature, humidity/moisture and possibly ventilation conditions and therefore, to explore and predict the behaviour during transport of green coffee its equilibrium moisture content must be determined for a range of transport temperatures and relative humidity levels . The present paper focuses on the evaluation of the hygroscopic properties of green coffee from different countries of origin based on isotherms of water vapour sorption and characteristic selected parameters of the surface microstructure determining transport conditions and the microbiological stability of this cargo. While assessing the quality and transport durability of green coffee beans, based on the parameters of monomolecular layer capacity and the specific surface area of sorption, it was found that especially samples of coffee from Guatemala and Ethiopia were the least susceptible to changes in the transport conditions.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 3; 641--647
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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