JOURNAL OF FOOD COMPOSITION AND ANALYSIS
·
2025
·
IF 4.6
Jiali Yang,Xia Jiang,Rong Zhang,Qinxiang Luo,Bin Wang,Xuewei Shi,Zhangying Wang
The quality of table-stock sweetpotatoes is significantly influenced by carbohydrates. The study investigated the changes of dry matter, starch, amylose, soluble sugar and 22 sugars in six purple-fleshed sweetpotatoes (PFSPs) with different anthocyanin contents harvested at 75, 105, 135, 165 days after transplanting, and revealed the accumulation pattern of carbohydrates in PFSPs. The dry matter accumulated constantly. The starch content decreased at 165d in GZ1, GZ9, GZ10 and G95–1, while GZ2 and G20 continued to accumulate with more starchiness taste. The accumulation of soluble sugars was primarily observed in 75–135 days, with sucrose, glucose, and D-fructose representing the predominant sugars. The proportion of sucrose varying from 41.75 % to 87.07 %, but decreased at 165d accompanying with the increasing of glucose and fructose. GZ1 exhibited the most favorable taste profile with higher sweetness and GZ10 accumulated sugar rapidly at 165d, making it the most suitable for harvesting later. While GZ2, GZ9, G20 and G95–1 accumulated carbohydrates rapidly in 75–135 days, which can be harvested appropriately early. This study can provide a theoretical basis for the selection and breeding for better quality of PFSPs.
研究领域:
植物学
·
食品科学
✓ 已验证
DOI
高影响因子
JOURNAL OF APPLIED MICROBIOLOGY
·
2021
·Vol. 130
·期 5
·1456-1465
·
IF 3.772
Zhao J.,Tao X.,Wang S.,Li J.,Shao T.
AimsThis study aimed to evaluate the feasibility of sorbic acid (SA) as a silage additive and its effects on fermentation quality and aerobic stability of high dry matter (DM) silage.Methods and ResultsHigh DM rice straw was ensiled with distilled water (C), 1 × 106 CFU per gram fresh weight (FW) Lactobacillus plantarum and 1 × 106 CFU per gram FW Lactobacillus buchneri (LP+LB) or SA for 45 days with a subsequent aerobic stability test. After ensiling, LP+LB silage had the highest lactic acid (LA) content and the lowest pH value, whereas SA silage had the highest DM and water‐soluble carbohydrate (WSC) contents, and the lowest ethanol and ammonia nitrogen (NH3‐N) contents among all silages (P < 0·001). Compared to C silage, SA significantly (P < 0·01) reduced the counts of yeasts but not lactic acid bacteria (LAB). During 6‐day aerobic exposure, the continuous pH increase and LA decrease were observed in C and LP+LB silages, and there was no significant change in pH, DM, NH3‐N and WSC contents of SA silage over the whole aerobic exposure. The SA addition slowed the decline of LA and acetic acid (AA) contents as well as the growth of yeasts and aerobic bacteria under aerobic exposure.ConclusionIn this study, L. buchneri could not function in high DM rice straw silage while SA effectively improved both the fermentation quality and aerobic stability.Significance and Impact of the StudyThe SA was more effective than dual‐purpose inoculants to improve the aerobic stability of high DM rice straw silage. Thus, SA can be served as a potential antifungal additive for silage with high DM.
研究领域:
动物科学
·
微生物学
✓ 已验证
DOI
高影响因子
Agriculture-Basel
·
2023
·Vol. 13
·期 6
·1213
·
IF 3.6
Hewei Chen,Fengliang Xiong,Qichao Wu,Weikang Wang,Zhaoyang Cui,Fan Zhang,Yanlu Wang,Liangkang Lv,Yingyi Liu,Yukun Bo,Luotong Zhang,Hongjian Yang
The objective of this study was to investigate the feeding value of sheepgrass, including its chemical composition, dry matter intake, nutrient digestibility, and available energy, as well as the prediction equations of dry matter intake (DMI), neutral detergent fiber digestibility (NDFD), dry matter digestibility (DMD), digestible energy (DE), and metabolizable energy (ME). Two independent experiments based on a completely randomized experimental design were performed to evaluate the feeding value. The results showed that there were significant relationships between chemical composition and DMI, digestibility, and available energy. The best-fit equations were as follows: DMI (g/d·W0.75) = 121.75 + 0.06CP (%) − 0.24EE (%) − 0.10ADF (%) − 0.60NDF (%) − 0.15OM (%) (R2= 0.85,p< 0.01), DMD (%) = −1.37 + 0.23CP (%) + 2.96EE (%) + 0.32ADF (%) − 0.82NDF (%) + 1.27OM (%) (R2= 0.83,p< 0.01), NDFD (%) = 225.58 − 0.59CP (%) + 0.04EE (%) + 0.09ADF (%) − 2.46NDF (%) + 0.12OM (%) (R2= 0.67,p< 0.01), DE (MJ/kg) = −5.19 + 0.38OM (%) − 0.26NDF (%) − 0.03ADF (%) + 0.16CP (%) (R2= 0.91,p< 0.01), and ME (MJ/kg) = 5.55 + 0.67DE (MJ/kg) + 0.01CP (%) − 0.01ADF (%) − 0.08NDF (%) + 0.02OM (%) (R2= 0.98,p< 0.01). This study found the energy value of sheepgrass to be 11 MJ/kg, which is similar to that of millet grass silage. The NDF was the main component that affected DMI and digestibility. Using a hay replacement ratio of 28.5% to determine the forage value of sheepgrass allowed accurate prediction equations to be established. The NDF demonstrated the strongest correlation with DMI, NDFD, OMD, DE, and ME. DE was estimated to be the best single predictor of ME.
研究领域:
动物营养学
·
饲料科学
✓ 已验证
DOI
高影响因子
Journal of Cleaner Production
·
2019
·
IF 6.395
Jingjing Pan,Jingyuan Shao,Haibin Qu,Xingchu Gong
Ethanol precipitation serves an important separation technology used for the manufacturing of more than 200 traditional Chinese medicines (TCM). In the present study, a membrane dispersion micromixer was employed for the ethanol precipitation of Codonopsis Radix concentrates to reduce the coating loss of active components. As membrane pore size decreased, mixing chamber width decreased, or mixing chamber depth decreased, lobetyolin recovery increased and dry matter removal decreased. Higher dry matter contents of concentrates (DM C ) or lower flow rates of two phases could lead to reduced lobetyolin recovery and increased dry matter removal. The mass ratio of ethanol solution to concentrate (ECR, g/g) showed little effect on lobetyolin recovery. Higher dry matter removal was obtained when ECR was higher. Higher continuous phase Reynolds number ( Re c ) or dispersed phase Reynolds number ( Re d ) resulted in higher lobetyolin recovery and lower dry matter removal. Lobetyolin recovery could be higher than 95% when using micromixing technology, which was about 10% higher than that of stirring. Membrane dispersion technology is promising to reduce the coating loss of active compounds in TCM ethanol precipitation.
研究领域:
制药工程
·
中药技术
·
化工
✓ 已验证
产品关联
DOI
高影响因子
Frontiers in Plant Science
·
2022
·
IF 6.627
Li Bingyan,Guo Tengfei,Zhou Wei
Despite the fact that there are many distinct types of plant growth regulators (PGRs), the diverse ways in which they regulate plant development are rarely compared. In this study, four PGRs (trehalose, chitosan, humic acid and gamma-aminobutyric acid) were selected and sprayed folially, and plant samples were collected while maize was at vegetative leaf stages 6, 10, and 14 (V6, V10, and V14, respectively) to reveal the effects of different PGRs on photosynthesis, dry matter accumulation, oxidative stress, carbon and nitrogen metabolism, hormone levels, and gene expression of maize. Results showed that 100 mg/L PGRs did not induce oxidative damage or repair activities in maize. Trehalose significantly increased chlorophyll content at V6 and promoted dry matter (roots and shoots) accumulation at V6 and V10. The activities of carbon and nitrogen metabolizing enzymes were significantly enhanced by trehalose treatment, which promoted the accumulation of sucrose and soluble sugar, but did not affect the biosynthesis of auxin and gibberellin at V6. Changes in carbon and nitrogen metabolism enzymes are regulated by transcription of related synthetic genes. Lower starch content and higher sucrose content in trehalose-treated maize leaves are important biological characteristics. Further analysis revealed that the effect of trehalose on the metabolic activity of maize was a short-term promoting effect (0–12 days), while the effect on maize growth was a long-term cumulative effect (13–28 days). Overall, exogenous trehalose induced stronger carbon and nitrogen metabolic activity, higher photosynthetic capacity and more dry matter accumulation than chitosan, humic acid and gamma-aminobutyric acid.
研究领域:
农业科学
·
植物生理学
·
分子生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Agronomy-Basel
·
2024
·Vol. 14
·期 10
·2450
·
IF 3.3
Ke Li,Yunji Xu,Dalu Gu,Xiaodong Yin,Yanyan Jia,Tinggang Wen,Weiqing Jiang,Yang Che,Qisheng Li,Zhangrong Wen,Xiaofeng Du,Wenfei Yang
This paper aims to clarify the effects of different exogenous phytohormones on the physiological traits of rice (Oryza sativaL.) at the early stage of irrigation under low-temperature stress. In this study, two types of rice varieties with different temperature sensitivities screened out previously, namely, a cold-tolerant variety (Nan Jing 9108) and a low-temperature-sensitive variety (Hui Liang You 898), were used in pots to simulate the process of low-temperature stress in rice at the early stage of grouting (6–9 days after anthesis) with artificial low-temperature treatments. The experimental treatments were 450 mg L−1Methyl jasmine acid (MJ), 46 mg L−1Melatonin (MT), 69 mg L−1Salicylate (SA), 40 mg L−1Erythromycin (GA3), 25 mg L−1Zeatin (Z), 145 mg L−1Spermidine (SPD), and 5 mg L−1Abscisic acid (ABA) sprayed on rice before low-temperature stress, while low-temperature treatment without spraying (DK) and conventional planting without spraying (CK) were added as the control. The results showed that compared with the room temperature control (CK, sprayed with deionized water), the low-temperature control (DK, low-temperature treatment, and sprayed with deionized water) all significantly reduced the rice grain yield. Different exogenous hormones sprayed before low-temperature stress could increase rice yield, among which, Z and SPD spraying treatments had a better effect on the yield of Hui Liang You 898, while different exogenous hormone treatments increased the yield of Nan Jing 9108 in an average manner. The Z and SPD treatments increased the yield of Hui Liang You 898 by 24.87% and 26.16% and that of Nan Jing 9108 by 15.87% and 17.80%, respectively. This was mainly attributed to the significant increase in thousand-grain weight and fruiting rate, while there was no significant difference in the number of spikes and number of grains. The different exogenous hormone treatments were able to delay leaf senescence, enhance the photosynthetic production capacity of plants by increasing leaf chlorophyll content, and thus increase the accumulation of photosynthetic assimilation products and population growth rate after flowering. Among them, both Z and SPD treatments resulted in a population growth rate of more than 30% from spike flushing to maturity, which led to a higher dry matter accumulation of the plant at maturity. In addition, in the dry matter distribution of the plant at maturity, the seeds occupied a higher accumulation amount and proportion compared with the respective DK; the SPD treatment resulted in the maximum distribution rate of seeds at maturity of Hui Liang You 898, with an increase of 8.27%, and the Z treatment resulted in the maximum distribution rate of seeds at maturity of Nan Jing 9108, with an increase of 7.34%. At the same time, the Z treatment significantly increased the activities of adenosine diphosphate glucose phosphorylated enzyme (AGP) and starch branching enzyme (SBE) in the grains of both varieties, which resulted in the accumulation of more starch and ultimately increased the rice grain yield. The results verified that different exogenous phytohormones could be used to regulate the insufficiency of grouting caused by low-temperature stress during the grouting and fruiting stages of rice and enriched their agronomic and physiological traits in response at the same time.
研究领域:
农学
·
植物生理学
·
逆境生物学
✓ 已验证
DOI
高影响因子
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