Browsing School of Agriculture & Food Science by Author "Mariga, Alfred Mugambi"
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Antiproliferative and Immunostimulatory activity of a Protein from Pleurotus Eryngii
Mariga, Alfred Mugambi; Yang, Wenjian; Mugamb, Dorothy Kemuma; Pei, Fei; Zhao, Li-yan; Shao, Yani; Hu, Qiuhui (Wiley, 2014)Currently, the use of mushrooms as functional foods, nutraceuticals or phytopharmaceuticals source has risen. In contrast, the possible cellular cytotoxicity and immunostimulatory activity of Pleurotus eryngii (DC. ex Fr.) ... -
Camel milk products beyond yoghurt and fresh milk: challenges, processing and applications
Marete, Philip K; Mariga, Alfred Mugambi; Huka, Guyo; Musalia, Levi; Marete, Eunice; Mathara, Julius M; Arimi, Joshua M (Springer India, 2023-01-09)Camel (Camelus dromedarius and (Camelus bactrianus) are commonly domesticated in the arid and semi-arid regions because they are well adapted to live in harsh climatic conditions. Camel milk is widely consumed in these ... -
Changes in non-volatile taste components of button mushroom (Agaricus bisporus) during different stages of freeze drying and freeze drying combined with microwave vacuum drying
Pei, Fei; Shi, Ying; Gao, Xingyang; Wu, Fangning; Mariga, Alfred Mugambi; Yang, Wenjian; Zhao, Liyan; An, Xinxin; Xin, Zhihong; Yang, Fangmei; Hu, Beta Qiuhui (Elsevier, 2014)Button mushroom slices were dehydrated using freeze drying (FD) or FD combined with microwave vacuum drying (FMVD), and the non-volatile component profiles were studied. The results showed that the level of non-volatile ... -
The characteristics of the film assembled by caffeic acid-grafted-chitosan/polylactic acid and its effect on the postharvest quality of Agaricus bisporus
Pei, Fei; Han, Ping; Zhou, Zhicheng; Fang, Donglu; Mariga, Alfred Mugambi; Yang, Wenjian; Ma, Ning; Hu, Qiuhui (Elsevier, 2022-02-14)In this study, a new type of packaging film assembled by caffeic acid-grafted-chitosan/polylactic acid (CA-g-CS/PLA) was prepared, and its characteristics, migration properties and effect on the postharvest quality of ... -
Comparison of Freeze-Drying and Freeze-Drying Combined with Microwave Vacuum Drying Methods on Drying Kinetics and Rehydration Characteristics of Button Mushroom (Agaricus bisporus) Slices
Pei, Fei; Shi, Ying; Mariga, Alfred Mugambi; Yang, Wenjian; Tang, Xiao-zhi; Zhao, Li-yan; An, Xin-xin; Hu, Qiu-hui (Springer, 2013)Button mushroom slices were dried using freeze-drying (FD) and freeze-drying combined with microwave vacuum drying (FD + MVD) methods. Drying parameters including drying temperatures (20, 30, and 40 °C), chamber pressures ... -
Comparison of Freeze-Drying with Three Different Combinations of Drying Methods and Their Influence on Colour, Texture, Microstructure and Nutrient Retention of Button Mushroom (Agaricus bisporus) Slices
Pei, Fei; Yang, Wen-jian; Shi, Ying; Sun, Yong; Mariga, Alfred Mugambi; Zhao, Li-yan; Fang, Yong; Ma, Ning; An, Xin-xin; Hu, Qiu-hui (Springer, 2013)Freeze-drying (FD) and three different combinations of drying methods: freeze-drying combined with hot air drying (FD + AD), freeze-drying combined with vacuum drying (FD + VD) and freeze-drying combined with microwave ... -
Concentrations and Health Risks of Lead, Cadmium, Arsenic, and Mercury in Rice and Edible Mushrooms in China
Fang, Yong; Sun, Xinyang; Yang, Wenjian; Ma, Ning; Xin, Zhihong; Fu, Jin; Liu, Xiaochang; Liu, Meng; Mariga, Alfred Mugambi; Zhu, Xuefeng; Hu, Qiuhui (Elsevier, 2014)In this study, four common heavy metals, lead (Pb), cadmium (Cd), arsenic (As) and mercury (Hg) in rice and edible mushrooms of China were studied to evaluate contamination level and edible safety. Ninety two (92) rice ... -
Effect of Auricularia auricula polysaccharide on characteristic structure, rheological properties, and tensile texture in whole wheat dough
Yifei, Du,; Wen, Li; Mariga, Alfred Mugambi; Yong, Fang,; Sun, Xinyang; Hu, Qiuhui; Fei, Pei (Journal of Food Processing and Preservation, 2022-08)In this study, the effects of Auricularia auricula polysaccharide (Aap) on the quality of whole wheat dough (WWD) were investigated. The results showed that compared to the control, the content of ordered structure (β-sheet) ... -
Effect of bound water on the quality of dried Lentinus edodes during storage
Yang, Wenjian; Pu, Haoliang; Wang, Liuqing; Hu, Qiuhui; Mariga, Alfred Mugambi; Zheng, Huihua (Wiley, 2019)Water absorption is the dominant factor affecting the quality deterioration of dried Lentinus edodes. We therefore analyzed the effect of moisture content and dynamic water status on physical properties of the mushroom ... -
Effect of Hot Air Drying on Volatile Components of Flammulina velutipes Detected by HS-SPME-GC-MS and Electronic Nose
Yang, Wenjian; Yu, Jie; Pei, Fei; Mariga, Alfred Mugambi; Ma, Ning; Fang, Yong; Hu, Qiuhui (Elsevier, 2015)Volatile compounds are important factors that affect the flavor quality of Flammulina velutipes, but the changes occurring during hot air drying is still unclear. To clarify the dynamic changes of flavor components during ... -
Effect of Nano Packaging on Preservation Quality of Nanjing 9108 Rice Variety at High Temperature and Humidity
Wang, Fan; Hu, Qiuhui; Mariga, Alfred Mugambi; Cao, Chongjiang; Yang, Wenjian (Elsevier, 2017)A nano packaging material containing nano Ag, nano TiO2, nano attapulgite and SiO2 was prepared, and its impact on quality of Nanjing 9108 rice at 37 °C and 85% relative humidity was studied. Effects of the packaging on ... -
Effect of Nanocomposite Packaging on Postharvest Senescence of Flammulina Velutipes.
Shi, Chong; Wu, Yuanyue; Fang, Donglu; Pei, Fei; Mariga, Alfred Mugambi; Yang, Wenjian; Hu, Qiuhui (Elsevier, 2017)A polyethylene based packaging material containing nano-Ag, nano-TiO2, nano-SiO2, and attapulgite has been prepared. The effect of nanocomposite packaging material (Nano-PM) on the senescence of Flammulina velutipes during ... -
Effect of Nanocomposite-Based Packaging on Microstructure and Energy Metabolism of Agaricus Bisporus
Wu, Yuanyue; Hu, Qiuhui; Li, Zhixiao; Pei, Fei; Mariga, Alfred Mugambi; Yang, Wenjian (Elsevier, 2018)Rapid deterioration of postharvest Agaricus bisporus is a serious problem. Measures to improve the shelf-life are of great importance. Therefore, we used a nanocomposite-based packaging material (Nano-PM) containing ... -
Effect of Nanocomposite-Based Packaging on Storage Stability of Mushrooms (Flammulina velutipes)
Donglu, Fang; Wenjian, Yang; Kimatu, Benard Muinde; Mariga, Alfred Mugambi; Liyan, Zhao; Xinxin, An; Qiuhui, Hu (Elsevier, 2015)In this study, a polyethylene (PE) packaging material that contained nano-Ag, nano-TiO2, nano-SiO2, and attapulgite was prepared and its effect on storage stability of mushrooms (Flammulina velutipes) was investigated. The ... -
Effects of Aw Storage Condition on Quality Deterioration of Dried Cabbages
Xie, Minhao; Pu, Haoliang; Hu, Qiuhui; Su, Anxiang; Mariga, Alfred Mugambi; Li, Xiuting; Yang, Wenjian (Wiley, 2022-02-11)Quality deterioration of dried vegetables often occurs during storage, and there is limited information about the quality and microbiota of dried cabbages during storage. In the present study, the appearance, physical and ... -
Effects of ferulic acid on the polymerization behavior of gluten protein and its components
Li, Wen; Sun, Xinyang; Mariga, Alfred Mugambi; Yang, Qin; Fang, Yong; Hu, Qiuhui; Pei, Fei (Elsevier, 2023)The effects of ferulic acid (FA) at different concentrations on the aggregation behaviors of gluten and its components (gliadin and glutenin) were determined in this study. Results showed that the free sulfhydryl content ... -
Exogenous Bacterial Composition changes Dominate flavor Deterioration of dried Carrots during storage
Pu, Haoliang; Hu, Qiuhui; Wang, Liuqing; Pei, Fei; Mariga, Alfred Mugambi; Yang, Wenjian (Elsevier, 2019)Flavor deterioration is a serious problem in dried carrots during storage and is frequently accompanied by water absorption and bacterial growth. To explore the underlying mechanism of flavor deterioration, relationship ... -
Growth Performance and Biochemical Analysis of the Genus Spirulina under different Physical and Chemical Environmental Factors.
Nyabuto, Dorothy Kemuma; Mariga, Alfred Mugambi; Kibue, Grace Wanjiru (ResearchGate, 2015)Spirulina is useful to man in many aspects of life including health, food and cosmetics. In the present study, we aimed at investigating the optimum physical and chemical conditions that promote Spirulina mass production ... -
Hot Air Drying Process Promotes Lignification of Lentinus Edodes
Yang, Wenjian; Du, Hengjun; Mariga, Alfred Mugambi; Pei, Fei; Ma, Ning; Hu, Qiuhui (Elsevier, 2017)Hot air drying (HAD) is the most commonly used method for processing of postharvest Lentinus edodes in industry, which may promote lignification in the mushroom, affecting nutrition and edibility of L. edodes. The mechanism ... -
Identification and Detection of Fungal Growth on Freeze‐dried Agaricus Bisporus using Spectra and Olfactory Sensors
Wang, Liuqing; Hu, Qiuhui; Pei, Fei; Mariga, Alfred Mugambi; Yang, Wenjian (Wiley Online Library, 2019)Fungal contamination in food products leads to mustiness, biochemical changes, and undesirable odors, which result in lower food quality and lower market value. To develop a rapid method for detecting fungi, hyperspectral ...