Noninvasive Determination of Firmness and Dry Matter Content of Stored Onion Bulbs Using Shortwave Infrared Imaging with Whole Spectra and Selected Wavelengths

Islam, Md. Nahidul; Nielsen, Gorm; Stærke, Søren; Kjær, Anders; Jørgensen, Bjarke; Edelenbos, Merete

doi:10.1177/0003702818792282

Cited by 22 publications

(6 citation statements)

References 53 publications

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“…The sprouting percentage, rotting percentage, and market bulbs percentage were gravimetrically calculated according to the methods of Sharma et al (2020), Nouri andToofnian (2001), andChaffoor et al (2003), respectively. In addition, firmness was measured using a texture analyzer [Instron Universal Testing Machine (Instron Model-4301, UK)], according to the method of Islam et al (2018). The mold incidence of the onions was determined by the method of Srinivasan and Shanmugam (2006).…”

Section: Physical Biochemical and Shelf-life Characteristicsmentioning

confidence: 99%

Performance Evaluation of Low-cost Storage Structures for Onions (Allium cepa L.) Storage in Bahir Dar, Amhara Region, Ethiopia

Eriballo¹,

Satheesh²,

Fanta³

2022

Philipp J Sci

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The effect of fully ventilated storage structure, netted bags, mud-coated structure (local practice in the region), and heap storage on quality and shelf-life of onion cv. Bombay red was studied at Bahir Dar Institute of Technology in Ethiopia. The experiment was conducted in a single factor with four levels (four storage structures) with three replications. Manually harvested and cured onions were stored in different storage structures and different quality and shelf-life properties were studied for 90 d. Analysis of variance (ANOVA) and correlation was conducted by SAS 9.2 version. The lowest sprouting % (1.03), rotting % (1.81), and mold incidence % (2.73) of the onions were recorded in the onions stored in fully ventilated storage structures for 90 d. The highest marketable bulb % was observed in the fully ventilated storage structure by the 90th day of storage. On the basis of this study, the fully ventilated structure was recommended to store the onions in the studied location.

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Section: Physical Biochemical and Shelf-life Characteristicsmentioning

confidence: 99%

Performance Evaluation of Low-cost Storage Structures for Onions (Allium cepa L.) Storage in Bahir Dar, Amhara Region, Ethiopia

Eriballo¹,

Satheesh²,

Fanta³

2022

Philipp J Sci

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“…Firmness was determined in a compression test, as described by Coolong and Randle [14], and Islam, Nielsen [15] with slight modifications. A 10-mm-diameter probe (TA10) was mounted on a CT3 texture analyzer (Brookfield Engineering Laboratories, Inc., Middleboro, Massachusetts).…”

Section: Methodsmentioning

confidence: 99%

Online measurement of temperature and relative humidity as marker tools for quality changes in onion bulbs during storage

et al. 2019

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A long shelf life of onions (Allium cepa L.) is of high importance in the onion industry. Onions are dried and stored in large wooden boxes that are difficult to access. Monitoring temperature and relative humidity during these processes is challenging. Moreover, quality may change in storage without being noticed. Therefore, there is a need to find alternative methods for monitoring and controlling the drying and storage processes of onions and to identify early changes in quality during storage. The potential use of online measurements of temperature and relative humidity (RH) in the vicinity of onions was evaluated during drying and long-term storage of six onion batches (four cultivars and three selections of one of the cultivars) in commercial storage. The batches varied in bulb weight, dry matter content, firmness and disease incidence. The dry matter content and firmness decreased during storage, while the respiration rate and incidences of individual and total disease increased. Two of the batches had low storability with high disease incidences and high average temperatures and variations in the RH. The results showed that tracking the temperature and RH in the vicinity of the onions is a promising tool for improving the drying and storage processes in commercial storage and for identifying onion batches with reduced storability early in storage.

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“…Environmental factors, such as for example the day length, affect bulb enlargement and taste eminence in onion [33]. In onion, light range and quality impacts bulb formation and quality [34][35][36][37][38][39][40][41]. The bulb initiation and growth of further Allium species including garlic have been shown to be influenced by day length, temperature, and carbohydrates [42,43].…”

Section: Photoperiodic Control In Bulb Enlargementmentioning

confidence: 99%

Mechanism of Allium Crops Bulb Enlargement in Response to Photoperiod: A Review

Atif

Ahanger

Amin

et al. 2020

IJMS

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The photoperiod marks a varied set of behaviors in plants, including bulbing. Bulbing is controlled by inner signals, which can be stimulated or subdued by the ecological environment. It had been broadly stated that phytohormones control the plant development, and they are considered to play a significant part in the bulb formation. The past decade has witnessed significant progress in understanding and advancement about the photoperiodic initiation of bulbing in plants. A noticeable query is to what degree the mechanisms discovered in bulb crops are also shared by other species and what other qualities are also dependent on photoperiod. The FLOWERING LOCUS T (FT) protein has a role in flowering; however, the FT genes were afterward reported to play further functions in other biological developments (e.g., bulbing). This is predominantly applicable in photoperiodic regulation, where the FT genes seem to have experienced significant development at the practical level and play a novel part in the switch of bulb formation in Alliums. The neofunctionalization of FT homologs in the photoperiodic environments detects these proteins as a new class of primary signaling mechanisms that control the growth and organogenesis in these agronomic-related species. In the present review, we report the underlying mechanisms regulating the photoperiodic-mediated bulb enlargement in Allium species. Therefore, the present review aims to systematically review the published literature on the bulbing mechanism of Allium crops in response to photoperiod. We also provide evidence showing that the bulbing transitions are controlled by phytohormones signaling and FT-like paralogues that respond to independent environmental cues (photoperiod), and we also show that an autorelay mechanism involving FT modulates the expression of the bulbing-control gene. Although a large number of studies have been conducted, several limitations and research gaps have been identified that need to be addressed in future studies.

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Noninvasive Determination of Firmness and Dry Matter Content of Stored Onion Bulbs Using Shortwave Infrared Imaging with Whole Spectra and Selected Wavelengths

Cited by 22 publications

References 53 publications

Performance Evaluation of Low-cost Storage Structures for Onions (Allium cepa L.) Storage in Bahir Dar, Amhara Region, Ethiopia

Performance Evaluation of Low-cost Storage Structures for Onions (Allium cepa L.) Storage in Bahir Dar, Amhara Region, Ethiopia

Online measurement of temperature and relative humidity as marker tools for quality changes in onion bulbs during storage

Mechanism of Allium Crops Bulb Enlargement in Response to Photoperiod: A Review

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