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Jan N, Anjum S, Wani SM, Mir SA, Malik AR, Wani SA, Hussein DS, Rasheed RA, Gatasheh MK. Influence of Canning and Storage on Physicochemical Properties, Antioxidant Properties, and Bioactive Compounds of Apricot ( Prunus armeniaca L.) Wholes, Halves, and Pulp. Front Nutr 2022; 9:850730. [PMID: 35634399 PMCID: PMC9132590 DOI: 10.3389/fnut.2022.850730] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 03/28/2022] [Indexed: 11/13/2022] Open
Abstract
This study aimed to examine the effect of canning and storage on physicochemical, mineral, and antioxidant properties and phenolic composition of apricot wholes, halves, and pulp. The findings for physicochemical properties revealed that the total soluble solids, titratable acidity, total sugars, and ascorbic acid were found higher in apricot pulp (37.15, 1.39, and 20.74% and 7.21 mg/100 g FW, respectively) followed by apricot wholes and halves throughout the storage period. The remarkable contents of potassium, phosphorous, zinc, copper, iron, and manganese were found in the apricot pulp which revealed that canning and storage slightly affected the mineral composition. Bioactive substances were identified and quantified by reversed-phase high-performance liquid chromatography, which indicated a higher presence of chlorogenic acid (34.45 mg/kg FW), quercitin-3-glucoside (16.78 mg/kg FW), neochlorogenic acid (26.52 mg/kg FW), gallic acid (5.37 mg/kg FW), kaempferol (14.22 mg/kg FW), ellagic acid (6.02 mg/kg FW), procyanidin B2 (8.80 mg/kg FW), and epicatechin (9.87 mg/kg FW) in apricot pulp followed by apricot wholes and halves throughout the storage period. The total phenolic content was found highest in apricot pulp (13.76 GAE mg/100 g FW) followed by wholes (8.09 GAE mg/100 g FW) and halves (6.48 GAE mg/100 g FW) which decreased significantly throughout the storage period. Antioxidant properties were assessed by DPPH, ABTS+, MCA, and BCBA, which were found higher in the apricot pulp (92.23 TEAC μg/g DW, 92.33 TEAC μg/g DW, 33.80 TEAC μg/g DW, and 68.40 TEAC μg/g DW, respectively) that is correlated with the higher presence of bioactive compounds. Thus, apricot pulp containing excellent sources of nutrients, minerals, phytochemicals, and antioxidant components could be used for consumption purposes that provide nutraceuticals and antioxidants globally.
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Affiliation(s)
- Nusrat Jan
- Division of Food Science and Technology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Srinagar, India
| | - Sadaf Anjum
- Department of Food Science and Technology, University of Kashmir, Srinagar, India
| | - Sajad Mohd Wani
- Division of Food Science and Technology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Srinagar, India.,Department of Food Science and Technology, University of Kashmir, Srinagar, India
| | - Sajad Ahmad Mir
- Department of Food Science and Technology, University of Kashmir, Srinagar, India
| | - A R Malik
- Division of Fruit Science, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Srinagar, India
| | - Sajad Ahmad Wani
- Department of Food Technology, Islamic University of Science and Technology, Awantipora, India
| | - Dina S Hussein
- Department of Chemistry, College of Sciences and Health, Cleveland State University, Cleveland, OH, United States
| | - Rabab Ahmed Rasheed
- Histology and Cell Biology Department, Faculty of Medicine, King Salman International University, South Sinai, Egypt
| | - Mansour K Gatasheh
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
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Wani SM, Gull A, Ahad T, Malik AR, Ganaie TA, Masoodi FA, Gani A. Effect of gum Arabic, xanthan and carrageenan coatings containing antimicrobial agent on postharvest quality of strawberry: Assessing the physicochemical, enzyme activity and bioactive properties. Int J Biol Macromol 2021; 183:2100-2108. [PMID: 34102235 DOI: 10.1016/j.ijbiomac.2021.06.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 05/29/2021] [Accepted: 06/01/2021] [Indexed: 10/21/2022]
Abstract
Effect of edible coatings of gum Arabic, carrageenan and xanthan gum containing lemon grass essential oil 1% w/v on postharvest quality of strawberry was studied under refrigeration for a period of 12 days. Results showed all the three coatings maintained fruit quality parameters during storage compared to control. Among all the coatings, carrageenan coated fruits showed delayed weight loss (10.1 to 8%), decay percentage (78.42 to 14.29%), retained ascorbic acid (0.15 to 0.27 g kg-1), antioxidant activity (18.17 to 25.85%), firmness (9.07 to 12.43 N), L* (32.38 to 40.42), a* (16.08 to 17.22) and b* (27.36 to 33.54). Carrageenan gum also showed lowest cellulase activity (0.03 units h-1 mg protein-1), pectin methylesterase activity (1.13 A620 min-1 mg protein-1) and β-galactosidase activity (0.51 μmol min-1 mg protein-1), while showed maximum reduction in polygalacturonase activity (0.07 units h-1 mg protein-1) at the end of storage. Carrageenan gum was found effective in retention of anthocyanins and phenolic compounds during storage. Coatings loaded with antimicrobial agent inhibited psychrophilic bacteria, yeast and mold growth. It is concluded that carrageenan gum could better retain strawberry quality up to 12 days under refrigeration.
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Affiliation(s)
- Sajad Mohd Wani
- Division of Food Science and Technology, SKUAST-K, Shalimar Srinagar 19002, J&K, India.
| | - Amir Gull
- Division of Food Science and Technology, SKUAST-K, Shalimar Srinagar 19002, J&K, India
| | - Tehmeena Ahad
- Department of Food Science and Technology, University of Kashmir, Hazratbal, Srinagar 190006, J&K, India
| | - A R Malik
- Division of Fruit Science, SKUAST-K Shalimar, Srinagar 190025, J&K, India
| | | | - Farooq Ahmad Masoodi
- Department of Food Science and Technology, University of Kashmir, Hazratbal, Srinagar 190006, J&K, India
| | - Adil Gani
- Department of Food Science and Technology, University of Kashmir, Hazratbal, Srinagar 190006, J&K, India
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Malik AR, Boger J. Zero-Effort Ambient Heart Rate Monitoring Using Ballistocardiography Detected Through a Seat Cushion: Prototype Development and Preliminary Study. JMIR Rehabil Assist Technol 2021; 8:e25996. [PMID: 34057420 PMCID: PMC8204244 DOI: 10.2196/25996] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 03/07/2021] [Accepted: 04/17/2021] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Cardiovascular diseases are a leading cause of death worldwide and result in significant economic costs to health care systems. The prevalence of cardiovascular conditions that require monitoring is expected to increase as the average age of the global population continues to rise. Although an accurate cardiac assessment can be performed at medical centers, frequent visits for assessment are not feasible for most people, especially those with limited mobility. Monitoring of vital signs at home is becoming an increasingly desirable, accessible, and practical alternative. As wearable devices are not the ideal solution for everyone, it is necessary to develop parallel and complementary approaches. OBJECTIVE This research aims to develop a zero-effort, unobtrusive, cost-effective, and portable option for home-based ambient heart rate monitoring. METHODS The prototype seat cushion uses load cells to acquire a user's ballistocardiogram (BCG). The analog signal from the load cells is amplified and filtered by a signal-conditioning circuit before being digitally recorded. A pilot study with 20 participants was conducted to analyze the prototype's ability to capture the BCG during five real-world tasks: sitting still, watching a video on a computer screen, reading, using a computer, and having a conversation. A novel algorithm based on the continuous wavelet transform was developed to extract the heart rate by detecting the largest amplitude values (J-peaks) in the BCG signal. RESULTS The pilot study data showed that the BCG signals from all five tasks had sufficiently large portions to extract heart rate. The continuous wavelet transform-based algorithm for J-peak detection demonstrated an overall accuracy of 91.4% compared with electrocardiography. Excluding three outliers that had significantly noisy BCG data, the algorithm achieved 94.6% accuracy, which was aligned with that of wearable devices. CONCLUSIONS This study suggests that BCG acquired through a seat cushion is a viable alternative to wearable technologies. The prototype seat cushion presented in this study is an example of a relatively accessible, affordable, portable, and unobtrusive zero-effort approach to achieve frequent home-based ambient heart rate monitoring.
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Affiliation(s)
- Ahmed Raza Malik
- Department of Systems Design Engineering, University of Waterloo, Waterloo, ON, Canada
| | - Jennifer Boger
- Department of Systems Design Engineering, University of Waterloo, Waterloo, ON, Canada
- Research Institute for Aging, Waterloo, ON, Canada
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Malik AR, Sultan S, Turner ST, Kullo IJ. Urinary albumin excretion is associated with impaired flow- and nitroglycerin-mediated brachial artery dilatation in hypertensive adults. J Hum Hypertens 2007; 21:231-8. [PMID: 17230233 DOI: 10.1038/sj.jhh.1002143] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We investigated whether the urinary albumin/creatinine ratio (UACR), a measure of albuminuria, is associated with non-invasive measures of arterial function in hypertensive adults without known coronary heart disease (CHD) or stroke. UACR was measured in the first voided morning urine sample in 469 non-Hispanic white hypertensive individuals (mean age 62.2+/-9.8 years, 41% men) belonging to hypertensive sibships. High-resolution ultrasonography of the brachial artery was used to assess flow-mediated dilatation (FMD)--an endothelium-dependent response--and nitroglycerin-mediated dilatation (NMD)--an endothelium-independent response. Because of skewed distribution, UACR was log transformed after addition of 0.1. The association of log (UACR+0.1) with FMD and NMD, before and after adjustment for CHD risk factors, serum creatinine, and hypertension medication and statin use was assessed using linear regression analyses. In univariable analyses, variables associated with lower FMD were greater age, male sex, history of smoking, lower high-density lipoprotein (HDL) cholesterol, higher serum creatinine and higher log (UACR+0.1); variables associated with lower NMD were greater age, male sex, higher systolic blood pressure, lower HDL cholesterol, higher serum creatinine and higher log (UACR+0.1). In separate stepwise multivariable regression analyses that adjusted for conventional CHD risk factors, serum creatinine and hypertension medication and statin use, higher log (UACR+0.1) was associated with lower brachial artery FMD (P=0.035) and NMD (P=0.0002). These findings highlight the association of increased urinary albumin excretion with impaired vascular reactivity in hypertensive individuals.
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Affiliation(s)
- A R Malik
- Division of Cardiovascular Diseases, Mayo Clinic and Foundation, Rochester, MN 55905, USA
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Abstract
AIM To assess the efficacy of low dose methotrexate (MTX) therapy for children with chronic anterior and intermediate uveitis. METHODS A retrospective case review of 10 children who received MTX for chronic uveitis at a tertiary referral centre was performed. The following data were recorded for each patient: age, sex, race, duration of uveitis, primary diagnosis, anatomical localisation of uveitis, corticosteroid therapy, dose range of MTX, duration of MTX therapy, and side effects of MTX therapy. Several clinical parameters were evaluated to study the effect of MTX. These included visual acuity, anterior chamber inflammation, and topical and oral corticosteroid requirement. RESULTS After MTX VA of 6/6 or better was present in 100% right eyes and 80% left eyes (p = 0.055 and p = 0.016, respectively). Anterior chamber inflammation decreased in 60% of children after MTX (p = 0.0168). The requirement of topical steroid decreased from a mean of 5.6 times a day before MTX to 1.5 times a day after MTX (p = 0.005). The dose of oral steroid decreased from a mean of 18 mg per day to 2.85 mg per day (p = 0.012). The most common adverse effect was nausea (20%). No patient required discontinuation of MTX because of side effects. CONCLUSION MTX is effective and safe for chronic anterior and intermediate uveitis in children. An increase awareness of its efficacy is required among paediatricians and ophthalmologists to prevent sight threatening complication of chronic uveitis and its treatment with long term use of steroids.
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Abstract
AIM To determine the visual outcome and factors influencing visual outcome after cataract surgery in an urban charity hospital in Pakistan. METHODS A series of selected outpatients were examined who had undergone cataract surgery in the preceding 24 months. RESULTS 181 patients aged 45-82 years were examined. The type of cataract operations they had had were extracapsular cataract extraction (ECCE) only in 50% (91), phacoemulsification (phaco) only in 11% (20), ECCE with intraocular lens (IOL) in 17% (31), and phaco with IOL in 22% (39). At presentation, 49.7% (90) had poor functional vision; after refraction 68% (123) had a good visual outcome. Functional vision in eyes undergoing ECCE with IOL was good in 77% (22) and with phaco with IOL in 71.8% (28). After refraction a higher proportion of eyes with IOL surgery (93%) had a good outcome than those with non-IOL surgery (53%). Uncorrected refractive error, present in 75.5% (68), was the commonest cause of poor functional vision. CONCLUSION This study demonstrates that it is possible to obtain good results with IOL surgery in the developing world. Increasing cataract surgery with IOL implantation should reduce the number of eyes with poor functional vision after cataract surgery. More attention should be directed towards ensuring that successful outcomes are indeed being realised by continued visual monitoring postoperatively.
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Affiliation(s)
- A R Malik
- Moorfields Eye Hospital, City Road, London ECIV 2PD, UK.
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Affiliation(s)
- A R Malik
- Moorfields Eye Hospital, City Road, London, UK.
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Tramboo NA, Iqbal K, Malik AR, Naikoo BA, Dar MA. Acute rheumatic fever in Noonan syndrome. Indian J Pediatr 2000; 67:605-7. [PMID: 10985006 DOI: 10.1007/bf02758497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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