Fluidized bed drying characteristics of moringa leaves and the effects of drying on macronutrients

Hasizah, Andi; Djalal, Muspirah; MOCHTAR, Andi Amijoyo; Salengke, Salengke

doi:10.1590/fst.103721

Cited by 6 publications

(4 citation statements)

References 64 publications

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“…Several other research results also show that the Page Model is sufficient to represent the grain drying mechanism. This result follows the research conducted [12], [13].…”

Section: Thin Layer Drying Modelssupporting

confidence: 91%

Thin layer drying model of local rice grain Siam mutiara variety from tidal swamp land in South Kalimantan

Darita,

Salengke

2023

IOP Conf. Ser.: Earth Environ. Sci.

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As staple food in many countries, rice is one of the most important cultivated plant. Indonesia is the third largest rice producer in the world with annual production of 54,65 million tons. South Kalimantan province has 191,740 ha of tidal swamp land, which equivalent to 30% of its total area. Paddy rice variety planted in this region is dominated by local varieties, such as Siam Mutiara. Local farmers prefer this variety due to its high demand and high selling price than other local rice varieties. This variety produces soft textured rice which is preferred by the people of South Kalimantan. In addition to the taste and texture, physical aspects such as wholeness of the grain is also important for consumers, and this aspect is affected by post-harvest processed such as drying. In this study, drying characteristics of Siam Mutiara variety was studied. Samples of Siam Mutiara from Jelapat 1 village, Barito Kuala district were dried using a Fixed Bed Dryer at three temperatures (40, 50, and 60°C) and an airflow rate of 1 m/s. The samples were dried in five trays made of PVC pipes (5” diameter and 1” length) which arranged vertically. The first four trays were used to dry paddy rice sample with a layer of 1 cm thick, and the lowest tray were used to dry the sample in a single layer grain (with average thickness of grain width 1,66 mm). The temperature and humidity at each tray monitored continuously, and the weight of the sample in each tray was measured every 30 minutes. The results of this study indicate that the temperature and humidity varied among the trays, where the lowest tray had the highest temperature and the lowest air humidity. However, moisture content of the samples in all of the trays are relatively similar for both the top four trays (with total of 4 cm) and the lowest tray (single layer). This result indicates that for Siam Mutiara variety, a total of 4 cm thick layer can still be considered as a thin layer drying. It also found that the effect of drying temperature on drying rate is significant. In addition, the drying characteristic of this rice variety can be best modelled using Page Model.

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“…Several other research results also show that the Page Model is sufficient to represent the grain drying mechanism. This result follows the research conducted [12], [13].…”

Section: Thin Layer Drying Modelssupporting

confidence: 91%

Thin layer drying model of local rice grain Siam mutiara variety from tidal swamp land in South Kalimantan

Darita,

Salengke

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Beberapa alat pengering pada industri pangan yang bekerja dengan mengalirkan udara panas di antaranya adalah fluidized bed drier (FBD) dan tray drier (TD). Beberapa peneliti menggunakan tipe pengering FBD untuk mengeringkan jamur tiram (Muhandri et al, 2017), daun kelor (Hasizah et al, 2022) dan bunga rosella (Mardiah et al, 2015). Beberapa peneliti lainnya menggunakan TD untuk mengeringkan daun kelor (Samad et al, 2023) dan daun mint (Raviteja et al, 2019) hingga mencapai kadar air 5,40-5,94% (bb).…”

Section: Pendahuluanunclassified

“…Bobot air pada rempah daun segar adalah bobot bahan segar dikurangi bobot solid kering. Kurva penurunan kadar air selama pengeringan dibuat dari hubungan antara waktu pengeringan dengan kadar air basis kering (Hasizah et al, 2022).…”

Section: Penentuan Kadar Airunclassified

Karakteristik Pengeringan Rempah Daun Menggunakan Fluidized Bed Drier dan Tray Drier

Muhandri,

Taqi,

Subarna

et al. 2023

J. Teknol Industri Pangan

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Bay leaves (Sygygium polyanthum), kaffir lime leaves (Citrus hystrix) and pandan leaves (Pandanus amaryllifolius) are herb leaves with unique aroma that are often added to dishes to strengthen and enrich the taste. The high demand of the leaves has prompted efforts to make them easy to distribute and shelf stable. Drying can increase the shelf life of these leaves with acceptable quality. The objectives of the research were to determine drying models for these leaves using two types of driers and to determine the panelist's preference for the dried and rehydrated leaves. These herb leaves are fresh-picked from the tree, cleaned and dried using the two different driers, i.e. fluidized bed drier (temperature 40-42°C) and tray drier (temperature 58-61°C). The leaves were weighed every 15 minutes until they reached a constant weight. Fresh leaves and dry leaves were photographed. The drying kinetics of both types of driers were checked with the Lewis model and Page model. Panelist preference test was carried out on dry leaves and leaves that had been rehydrated using hot water. The results showed that drying with a tray drier was able to dry faster than that with a fluidized bed drier. The Page drying model is more suitable to describe the drying conditions than the Lewis drying model. Panelists preferred dry and rehydrated herb leaves obtained from fluidized bed drying.

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“…The drying process took place mainly during the constant rate phase at lower temperatures and transitioned to the falling rate phase at higher temperatures. The drying characteristics of Moringa leaves were best described using the Page model (Hasizah et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Automated Drying of Moringa Leaves Using an Arduino Uno Microcontroller

Dethan

2024

SLJIL

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The aim of this research is to explore how to design and implement the use of a DHT11 sensor with Arduino in a moringa leaf dryer for temperature and humidity control. The device design process involves the preparation of all necessary equipment and the creation of Arduino source code. This code makes connections between the Arduino uno, DHT11 sensor, LCD display, relay and fan using jumper cables, allowing the results obtained to be displayed on the LCD screen. Temperature and humidity are monitored at 15 minute intervals over a 7 hour period and the fan is automatically activated in the event of temperature fluctuations during each drying phase. The research results show that the device design system includes hardware components such as the Arduino Uno and the DHT11 sensor, LCD display and fan. In addition, the software program for the monitoring system, initialised using the Arduino IDE, has been successfully designed and works effectively. Based on the equipment test results, the average moisture content of the Moringa leaves is 7.2% compared to the initial moisture content of 73%. These results underline the efficiency of the developed system in achieving the desired drying results.

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Fluidized bed drying characteristics of moringa leaves and the effects of drying on macronutrients

Cited by 6 publications

References 64 publications

Thin layer drying model of local rice grain Siam mutiara variety from tidal swamp land in South Kalimantan

Thin layer drying model of local rice grain Siam mutiara variety from tidal swamp land in South Kalimantan

Karakteristik Pengeringan Rempah Daun Menggunakan Fluidized Bed Drier dan Tray Drier

Automated Drying of Moringa Leaves Using an Arduino Uno Microcontroller

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